THIS IS MY SECOND REVIEW: After being very impressed with the home theater package HR/HA-103, making a detailed review, I quickly re-ordered a two way stereo package R-103 and A-103 and after receiving my ALESIS 3630 compressor/limiter/gate and an e-bay acquired MAGNEPAN .5 PLANAR SPEAKERS, I installed the R-103/A-103 to my CARVER TFM-35 power amp being driven by a CARVER C-16 preamp reconnecting the ACOUSTIC RESEARCH TDS-202 ENHANCER and the ALESIS 3630 compressor to the sound processor loops. MIND YOU, this is all in conjunction with all my other amps, receivers, speakers, and processors CHAIN LINKED. I'm not DONE! I still am going to experiment with BBE and BEHRINGER processors in the future when I receive them. These processors are used by DJ'S and sound engineers.

Tweaking a system is my FORTE' I did a variety of tests. I bypassed my APHEX AUREL EXCITER 204, CARVER SONIC HOLOGRAPHY(advance version), SRSLABS PRO-220 SPATIAL ENHANCER and shutting down all other systems.

What was left was the CARVER AMP/PREAMP, with just PYRAMID equalizer, ACOUSTIC RESEARCH enhancer, the ALESIS compressor, with the DAKIOM R-103/A-103 installed to the amp and in the equalizer. The preamp has already the dakiom's being fed.

WITHOUT THE DAKIOM'S and all processors BYPASSED, the system SOUNDED plain and clear due to the MAGNEPAN .5 and CARVER system. With the DAKIOM'S installed, like my previous review, the SPEAKERS CAME TO LIFE, and THE CARVER AMPS/PREAMPS really comes to life, as great the circuitry in ALL CARVER EQUIPMENT, the DAKIOM'S enhances them to THEIR FULL POTENTIAL.

Now I ENGAGED all the processors, one by one...the DAKIOM'S in each processor IMPROVES and WIDEN'S the AUDIO SPECTRUM on each processor. It's a MARITAL BLISS matching both the ALESIS 3630 COMPRESSOR and the DAKIOM R-103/A-103 STABILIZER'S, with the ACOUSTIC RESEARCH TDS-202 engaged with the compressor and stabilizer, IT'S A 3-WAY ENHANCER "HEAVEN!" Like I mentioned before, whatever the DAKIOM stabilizer TOUCHES, it adds FLAVOR and IMPROVEMENT beyond what your EARS CAN "LIVE WITHOUT!" The better your system, the more MUSIC and LIVELINESS it brings out.

FOLKS! This is an AMAZING PRODUCT and HIGHLY RECOMMENDED. You are wasting money, by not INVESTING on a SIMPLE yet very EFFECTIVE device that is MULTI-PURPOSE for HOME, CAR, RV, BOAT whatever!

With all my equipment and processors ENGAGED, and with all the DAKIOM STABILIZERS I installed, It's in another LEVEL of sound reproduction that not many people of non-technical expertise will be able EXPERIENCE. From the HIGHER END AUDIOPHILES with MEGA-SYSTEM'S to the LOW-FI music enthusiast, these devices will IMPROVE your system and MAKE SYSTEMS that are already ASTONISHING...GREAT SOUNDING!

In conclusion, THE DAKIOM STABILIZER'S are like SALT OR SEASONING to FOOD in the AUDIO WORLD. The FLAVOR of music is just FLAT and PLAIN without it. With the DAKIOM'S, it's like adding SEASONING of various FLAVOR to your music. THIS REVIEW WAS MADE BY: An audiophile of 25 yrs. Experimenting with various sound processors since 1980, using the ORIGINAL MONSTER CABLES when it was still mail order in 1979 as a TEST PRODUCT. Using the ORIGINAL simulated SURROUND sound by OMNISONIX omnisonic imager to DBX 3BX series 3 range expanders, CARVER C-9 holography,ADC SS-415X computer controlled equalizer's using BOSE 901 series V in the mid 80's, YAMAHA AND SANSUI AMPS/PREAMPS straight from JAPAN.

A former HIGH END HOME THEATER INSTALLER, who installed many HOME THEATER SYSTEMS costing an average of $35k and up with IN-WALL construction, multi-layered wiring, panelling, controls, CABINETRY and in-home cabinet manufacturing to multi-million dollar homes, mansions and business, using high grade cables and accessories like NILES, SPEAKERCRAFT, RUSSOUND, PIONEER ELITE, ONKYO HIGH END, YAMAHA HIGH END, CROWN, MCKINTOSH, SAE, NAKAMICHI,NHT, ENERGY, INFINITY HIGH END, MONSTERS, GRADO and the lists goes on! I had to assemble and match different systems that would best suit the acoustics of whatever the structure of the home or apartment the chosen equipment would be. Advising, consulting and TESTING for systems prior and once installed in the homes, apartments, condos or business. VOCATIONAL COLLEGE/SCHOOL IN ELECECTRONICS in CLASS A and H amplifiers,digital etc. Did some electronic testing using signal generators, oscilliscopes, spectrum analyzers, pink noise generators. Decibel range meters and the like. I think I have some input in contributing to the PROMOTION/ENDORSING of any TECHNOLOGICAL device in the audio world from whatever the manufacturer.

DAKIOM came up with a WINNER and a MUST HAVE accessory to any audio/video component! Let's say, is one of the audio companies that DAKIOM came up with ONE OF THE REVOLUTIONARY devices that has come out within the past 20 yrs or so, and in my opinion 1 out of 3 in the last decade DAKIOM being the latest preceded by APHEX and ACOUSTIC RESEARCH. Yet, the DAKIOM'S are a completely different piece of device which enhances the mentioned ENHANCERS. GREAT JOB DAKIOM and the many people responsible for this technological advancement in the AUDIO WORLD! 

In conclusion, THE DAKIOM STABILIZER'S are like SALT OR SEASONING to FOOD in the AUDIO WORLD. The FLAVOR of music is just FLAT and PLAIN without it. With the DAKIOM'S, it's like adding SEASONING of various FLAVOR to your music… THIS REVIEW WAS MADE BY: An audiophile of 25 yrs .. DAKIOM came up with a WINNER and a MUST HAVE accessory to any audio/video component!…
 

Thomas Z. (Chicago, IL)

"AT THE BEGINNING WAS CHAOS AND THEN GUYS AT DAKIOM CREATED FEEDBACK STABILIZERS"

Road to sound perfection is long, dangerous and full of empty promises but from time to time you can come across very good product. I my quest for sound i have come across good ,OK, and bad product. WELL THAT IS LIFE.

One day i was searching audiogon (nothing in particular just wonted to seen what is out there) i have come across company named DAKIOM . That company in their add claims that their product improve sound. After reading all reviews i decide to give a shot besides 30 day money back and special introductory price help me to make my decision.

My order arrived fast and well protected. I decide to attach HA-103 AUDIO STABILIZER first. My first movie X-MAN 2, i must have seen that movie dozen times but what i heard was totally new soundtrack. The opening scene in the white house blew me away. The effect of that scene were reproduced with such detail and dynamic that got me off guard. There was so much more to bum and bang , specially bass area become clear and define Finlay bass get rid of the mud. Next movie was Lord of the Ring fellowship... Amount of detail in quiet passages of the movie was incredible for the first time i was hearing wind, leafs rustle , and even rain got a new life.

On the next day i was so excited to attach HR-103 but i could not imagine how it could make things even better. I was for a pleasant surprise. First movie on the menu MATRIX RELOADED. Oh boy i was not prepared it seams that more STABILIZERS MORE IMPROVEMENT. HR-103 bring new meaning to a word SURROUND for the very first time i was sitting totally immerse in 360 degree sound field, suddenly sound was coming from all speakers ( 7.1) with equal power and clarity. Something else happened also sound become transparent as well as very well balanced. What i mean is that before i had to adjust volume all the time while watching MATRIX quiet parts were overpowered by loud effect. Well not any more STABILIZERS make sound very pleasant and balanced.

Description in audiophile terms although true is not adequate here. Dry words are not reflecting felling while watching or listening to the music. It is a filling of space and incredible attention to a detail what keeps listener involved through out a presentation. IT is interesting that STABILIZERS bring what is the best in a recording but also show its weak points.

I suddenly had a need to use THX RE-EQ. That was specially apparent on 1997 MISSION IMPOSSIBLE (TOM CRUISE). That movie is one of the first dvd's on the market. Soundtrack of that action flick was OK but after STABILIZERS were instilled dvd got brand new 5.1 soundtrack screaming for THX RE-EQ. That poor soundtrack become dynamic, loud and you could actually hear surround effects. Brightens was adjusted with THX (THAT IS WHAT THX DOES Hmm????) MATRIX REVOLUTION attack with full power. I though that soundtrack was good already but STABILIZERS make me see that movie for the very first time. The most apparent result was increase in sound stage, well beyond the screen, sound was coming out from places where there was no speakers; very nice but the balance is what i like because i did not have to sit with remote in my hand and adjusting sound all the time. Treble become well controlled while they were never bright they become smooth and clear. Dialog reproduced with at most precision, you could not only hear but feel voices (for the firs time i had a bass in a center channel) SOUND STAGE gain also great deal of depth very 3 dimensional.

To decide if that changes ware true i disconnect STABILIZERS for two days and watch the same movies for point of reference. Well doing so i would recommend clear the path in front of equipment because you will run, yes run to put them back. There was definitely some thing missing, sound stage shrink surround channels disappear, Details become less apparent. I deeply believe that STABILIZERS are not a tweak they are inseparable part of a any system.

If anybody should have dilemma buy or not the answer is YES. STABILIZERS ARE STAYING IN MY SYSTEM FOR GOOD, CHANGES ARE TOO BIG TO LIVE WITHOUT THEM. OF COURSE CHANGES MIGHT BE DEPENDABLE ON MANY THINGS BUT THERE IS ALWAYS GREAT SUPPORT LINE THAT DAKIOM PROVIDE. I WOULD LIKE TO THANK GUYS AT TECH SUPPORT FOR ALL HELP AND ADVICES CONCERNING ATTACHMENT OF STABILIZERS. THANK YOU VERY MUCH FOR INVENTING SUCH AN INCREDIBLE PRODUCT.

MY SYSTEM:
1- PIONEER VSX 45TX ELITE
2- DENON DVD 2200
3- IN FOCUS X1 DLP PROJECTION 3-DA LITE 80 INCH SCREEN
4- POWERVAR POWER CONDITIONER
5- BOSTON ACOUSTICS VR 950 MAINS
6- BOSTON ACOUSTICS VR 910 CENTER
7- BOSTON ACOUSTICS VRS DIPOLE SURROUNDS AND SURROUND BACK
8- ALL CABLES BY COBALT CABLE MANY TWEAKS INC BYBEE QUANTUM ON DIGITAL CABLE AND SPEAKERS BYBEE QUANTUM CONDITIONER FOR ALL EQUIPMENT, ERS PAPER AND MORE.
9- POWER CABLES BY CRYOTWEAKS ALL BYBEE QUANTUM WARE DISCONNECTED FOR TESTING OF STABILIZERS.
 

Jeff S. (Pueblo, CO)

I am using: a Teac PD-D900,c.d. player.... harmon/Kardon AVR 35 Receiver.... Infinity RS4 right and left front speakers.... Bose VSC-10 center speaker.... Bose 201 series 3 surround speakers... Infinity model BU1 subwoofer.

Noticed a wonderful difference in my audio system right away after installing the Dakiom Audio Stabilizers, there is no doubt this product can and will improve you're system. The stabilizers seem to smooth out the rough edges of the music, i now listen to c.d.'s that were barely audible before because of high pitch noise and other unwanted sounds.

I am not an expert at stereo system's and such, but if you're like me and don't want to get into the high priced game of upgrading your system, the Dakiom Audio Feedback system is the best deal, no doubt about it. The mid-range improvement was significant and the high frequency range was smooth with a nice pop sound to the bass with a more suitable and distinct sound. I would also like to say that my headphones (Sony RF915 series) sound much better, they came to life, the music was more suttle with a nice punch to them.

I highly recommend the Dakiom audio system to anyone out there who enjoys music like i do.
 

Cory M. (Sioux Falls, SD)

I have been using one output stabilizer #A103+ and one line stage stabilizer #R103 for a full month now, so I am to be sure and write an accurate review of the products. One note, first off, is that they do sound better after a short break-in period. My first impression when I connected these to my system was very good, but I had an impression of a little lost clarity in the treble- less "attack." After listening to these more and more, and especially after taking them out for awhile, I realized that the only thing that was gone was the feedback distortion. I was mistaking the harshness for loudness perhaps, my system definitely sounds more musical now. It is amazing to find out how bad your amps actually sound when you find out what these little things can do- taking them out after listening with them in for awhile makes music- especially "busier" music like rock- sound like it is coming out of a cave. I would kind of compare it to a ghost on a TV screen- the negative feedback is like an echo of the music. I never realized this until it was gone- and gone is a good thing. I always felt like there was something wrong, something confused between the "music" and the "audio" that was interpreted.

I don't know how they do it, but the stabilizers remedy nearly ALL "LISTENER FATIGUE." Seriously. I love to just kick back, throw a record on and crank it up, and I listen for a couple, three hours at a time now enjoying every minute where before an hour was about the time when I stopped having fun and the headache started in. And it's not that my system is lacking in the first place either. Not super-high end, but not shabby either- Adcom GFA-555II amplifier running Magneplanars via a Philly Audio Blues 7B V.II tube preamp, homebrew phono stage, Dynaco CDV-1 tube cd player, Pioneer 563sa SACD/ DVD- audio player and a Canton Plus Alpha one powered sub. I have also tried the stabilizers on my NAD 3020 integrated, 50's Bogen Challenger CHA-33 tube monoblocks rebuilt/ modded by myself, and some various car audio equipment with good results. One word of advice though- don't even bother trying to take these things apart!! I guess you guys really don't want anyone to know about your circuitry, I took the screws out, pryed the cover off, gouging my hand with a screwdriver only to find out that all the internal components are embedded in "resin"- like a prehistoric fossil. Kind of pissed me off really, you should know that audiophiles are curious by nature and want to know "what's under the hood," but it is your secret circuit I guess. And another thing I should bring up, I saw the ad for these Dakiom stabilizers many, many times on Audiogon before I decided to visit the website and read up a little more on them and finally give them a try (why not, they're cheap enough.) The reason I didn't take the ad or the product seriously when I saw it was your "buy this or die!!" sales approach. Ok, maybe I am over-exagerating a little

bit, but am I the only one who noticed this? "This is the only way you'll ever have good sound out of your system," so on and so on. A little pushy. Kind of made me think it was a hoax or something. Anyway, those two minor gripes out of the way, this seriously and truly is a breakthrough for the audio world, and I would recommend for anyone that loves music to give these a try. Even the "eliteist" audiophiles with megabuck systems- your amps have some of the basic circuit designs in common also. I would classify the stabilizers not as an add on, tweak, or refinement, but as the missing stage of an amplifier. Someone has finally found out how to solve the problems that arrise from the use of negative feeback, without taking away the benefits. And to do so passively. That is awesome.
 

Henry K. (San Francisco, CA)

Hi, Dakiom: Thanks for the product. Here is my review.

I have never come across so many reviews on one product-Dakiom feedback stabilizer, especially all are favorable reviews. As I read through them one by one, I wondered whether they are true stories and I hoped that I would get the same feeling and the kind of described effect on my system:

Rogue M120 Magnim mono tube power amps and Rogue 99 Magnum tube preamp, Ear 834P tube phono amp, Nottingham Spacedeck turntable and Proac 3.5 speakers.

To my surprise, I am happy that the reviews are so true, with the stabilizers on, the sound is very pleasant to the ears, which is smooth, airy, musical and detail, even the volume is turned down a bit lower than usual, the music is still clear and outstanding. I can now settle down and be relax to enjoy listening to music instead of thinking about other tweaks to improve my system. I will tell my friends about this valuable product. Best Wishes!
 

Greg P. (Oswego, NY)

After seeing an ad on Audiogon and reading the positive reviews, I decided to give the Dakiom products a try. I ordered one A103 Feedback stabilizer for the amplifier and two R103's -- one for the outputs of the MSB dac, and one for the outputs of the Quicksilver pre-amplifier.

Like many reviewers, I was astonished by the improvement these products made in my system. I mainly listen to classical music, but I have been listening to a lot of Jazz over the past few months. I began by inserting stabilizers at the amplifier and the dac outputs. The Jazz albums that I have grown to love immediately took on a new, more lifelike, quality. Simply put, they sounded more "musical." I listened to cuts from Monk's "Straight, No Chaser," Coltrane's "Crescent," Miles Davis' "Kind of Blue." In each case I found myself more deeply involved with the music than I could ever remember being.

I suffered the dilemma of every audiophile who discovers a hot new product. The music sounded so good I wanted to keep listening; at the same time, I wanted to hear what the product could do for so much other music I have in my collection. I don't pretend to know how these stabilizers work, but I am convinced they do.

The most notable immediate improvement was in the bass, which was tighter and more focused. After listening to some of my favorite (and familiar) classical cds, I noticed a similar improvement throughout the critical midrange. Individual instruments were better defined and the sound stage was deep and well layered. Both of these are areas where the Maggies shine, even more so with the stabilizers in place.

But to my mind the main improvement was not in the details but in the overall presentation. Rhythms seemed to flow more naturally and the music seemed more like a live performance. Isn't that what audio reproduction is all about?

After several days of intensive listening, I added the second R103 at the outputs of the pre-amp. Not surprisingly, the improvements were more subtle but were nevertheless noticeable. The effects of adding stabilizers along the chain are cumulative. The good news is you can do this over time as your budget allows.

In terms of price vs. performance I can't think of a better product, and I now consider the Dakiom stabilizers an integral part of my system. With the money-back guarantee you really can't go wrong. If you love music, you owe it to yourself to try this product.

Associated Equipment
Analog:
  -Rega P3/2000/Elys
Digital:
  -Cal Delta Transport
  -MSB Link DAC III/modified/96,132 upsampling
  -Monolithic Audio power supply
  -Monarchy Audio DIP
Amplification:
  -Quicksilver Audio Tube Preamp
  -Counterpoint SA 100 amp
Speakers:
  -Magnepan MG 1.6QR
  -Rel Strata III sub bass
 

My story -

I am Augusto Sampaio, a pediatrician and music lover living in Brazil.

My enrollment with the high ending electronically reproduced music started around 1970. At that time, I already had a dedicated room for listening recorded classical music. Fifteen years later, I built another music room, so important for me as my new house and bought my first CD player, decided to move from LPs to CDs by their dynamics and for my own comfort. Finally, I was entering in a quiet world without the annoying clicks, pops and the tiresome downs and ups from my chair just for turning the LP sides. I was free of Zerostats romantically squeezed over the disc after capturing the microscopic particles of dust with a Decca brush. No more cleaning the stylus tip with the therapeutic Last liquid before each playing.

All those ritualistic ceremonies in honor of a better music reproduction have ended. I was secure that my happiness would be forever. Not yet. Soon, I discovered some new bad companions such as jittering, not very wide soundstages or worse, flat ones, and a much easier hearing fatigue. Without knowing, I had lost my analogical curve somewhere in my growing CD shelves.

It was time to move again. In my third and smallest listening place, already in the 24/96 new era, I put my ex-retired Genesis Digital Lens back to work, connecting it after a Sony DVP-NS 900 V used as a transport. From there, the signal goes to a Digital Interface Processor 24/96 and then to an up-sampler 48/96, both by Monarchy. I could feel I was closer to my missed LPs sound, but still it was not enough.

My newest acquisition was a small box, the Corda Analoguer, made in Germany by a smart guy, PhD in electronics, Dr. Jan Meier. I felt my dreamed sound was near me, but still it was not consistently analogical. Then, I ordered a little gear, similar to the Corda Analoguer, the Taddeo Digital Antidote II.

The chain for creating an analogical curve was almost complete when I read in one of the last issues of Bound For Sound some commentaries by Mr. DeWulf about the Dakiom feedback stabilizers A 103 and R 103. I ordered both. It is amazing how there is always a space for more improvements in the audio art.

Presently, everything is new in my system. Don't ask me how technically those little passive boxes work. I am only a veteran sufferer audiophile with a pair of reasonably trained ears, not an electronic specialist. What I know is: the results have been the closest to everything I as looking for.

My philosophy, today and in the future, is always searching for improvements without compulsively make constant changes in my basic equipment. If they are in a good level of quality, why to replace my old Levinson ML6A preamplifiers, the ML3 Mark Levinson amplifier or my speakers for low frequencies, part of the veteran 6000 system by Celestion, or my marvelous mono amplifiers SE-100 Delux by Monarchy? For many years ahead, my speakers for high and middle ranges will be the ACI Saphire III. Also, I expect to keep in love over my ART DI/O D/A smart upgraded by Wayne Waananen with its power supply assembled here. Now, more than ever, I spend my free time listening to music analogically relaxant.

I think that any serious audiophile deserves a trial with these little, but essential, Dakiom stabilizers. 

Cheers,

P. S. - Other components of my system:

Better Cable Silver Serpent interconnects with Eichmann Bullet Plugs,
AWG 6 speakers cables in parallel with the Alpha Goertz MI cables, for middle and high frequencies,
Analysis Plus Oval Nine cables for low frequencies,
Bybee filters assembled by Michael Garner connected to the ACI Saphire III and a Power Plant 400S.
The PS Audio P300 with Multiwave II presently is connected in parallel, working only as a current sucker.
 

Please see my review below:
I already have a very tweaked out system; $25K of components and speakers, dedicated 20 amp dedicated circuits, tweaked CDs, , Bedini clarifier, bybees, equipment stands, vibration and acoustical treatment. With Dakiom stabilizers, I was surprised at how the music popped out at me. The sound became more like a live performance with a much larger soundstage and presence. More three-dimensional, smoother, and much more analog-like without losing definition, clarity or transients. The harshness was gone that I didn't even know that I had. Smooth as silk. The bass is tighter, clearer, and more distinct, and more of it. I caught myself enjoying music more than listening to the sound. If you want more music for less money, I highly recommend the line of Dakiom filters to you. It is the most bang for the buck of any tweak that I have ever tried.

Associated components:

Suprakek Chardonnay - preamplifier
Midwest Audio 2A3 - amplifier
Altis Audio CDT III - CD transport
Altis Audio Reference - DAC
Virtual Dynamics Signature cables
AER MKII Single Driver speakers
Aurios Pros - vibration control ASC Tube Traps
Stillpoints ERC Zoethecus amplifier stand
Deluxe JustaRack equipment stand
Dedicated 20 amp circuits
Bedini Clarifier
 

Ben P. (Atlanta, GA)

Dear Dakiom:

As a former musician, I was dubious as to how much of a difference the stabilizers would make, especially on my novice audiophile system (Jolida JD-202A w/ level 1 upgrade, Musical Fidelity A3.2 CD, Meadowlark Audio Swift loudspeakers, DiMarzio interconnects).

Well, the answer is a big difference. After doing blinded tests, I always come to the same conclusion. The music just sounds better. After putting the stabilizers on, the music is more lifelike, and more beautiful than before. Now I find myself more involved in the music, and just plain grinning more. Thanks for a great product at a more than fair price.
 

Piet V. (Aalst, Belgium)

Components used:

1) Mac Levinson 383 integrated amp 2) B&W Nautilus 802 3) Marantz CD 14

I was already very pleased with the sound quality I was getting from my sound system, but I am in a constant "state of tweaking" . As I understand, many "audiophiles" (In a self critical way I like to think of them as fools) are never satisfied and, so I was happy to order another (however cheap) Gizmo.

I couldn't really tell much difference at first. I thought I 'd lost again some money in the classic audiophilic-foolish way instead of getting a gift for my wife.

I may have noticed that the bass seemed slightly shorter, not big and annoying but a bit more defined. I wondered if I was suffering again from the placebo-effect. I left them in for a 14 days and then removed them.

Going back from the stabilized state to the non-stabilized state really made a big difference and I could not bear the harshness of the sound without the stabilizers. This is really an addition to my system, and as stated on the web site , try the dakiom stabilizers first and you will feel no need anymore to spend hundreds of dollars on expensive cables.
 

Greg M. (Sask, Canada)

My setup up is as follows:
- (2004) Arcam avr-200
- (1982) Yamaha m-60 160 watt amp (class A circuitry)
- (2003) Pioneer 5 disc DVD player model dv-c503
- (1999) Muse model 2 Dac (Class A borderline)
- (1999) Totem Tabu Mini-Monitors 150 watts (front 2 channels)
- (2004) Totem MITE-T CENTER (100 Watts)
- (2004) Totem Lynks rears (100 watts)

From the transport to the Muse Dac (1) 75 ohm 7 strand 99.999% pure silver digital interconnect. Dac to the AVR 200 (2) 99.999% pure silver RCA interconnects with a 2 channel Dakiom Pig-Tailed into the outputs as I made the interconnects myself. And from the Arcam AVR 200 to the Yamaha amp for the front two channels; again (2) 99.999% pure silver RCA interconnects with a 6 channel feedback stabilizer - 6 wires connected to the pre-outs on the Arcam (2 pigtailed to the front 2 outputs and (NO SUB) Not needed TONNS OF BASS!!!! The speaker feedback stabilizer is connected 3 wires to the center and rears on the arcam and 2 wires to the front 2 channels on the Yamaha with all connections silver soldered.

I began this setup replacing a 1979 yamaha amp with the arcam, as I wanted a home theater setup with at least 90 watts on my front 2 channels. I allowed the arcam to burn in 150 hours but never got back the smoothness I had before with the old Yamaha and the muse model 2 Dac with the 5n silver wires. The sound was harsh and tinny... rather muddled. Then I found the Dakioms on the net and thought what can I loose with the money back guarantee - as up till now all I've got is good 5 channel home theatre and a expensive remote - not better sound.

Upon installing the dakioms.... I installed all 3 components at once - immediately the sound opened up - the mid-range was clearly much more defined. Raspiness from voices virtually almost disappeared. The intruments moved from the speakers to around the room as they once were.

The sound enhancement was immediate and even though they say there is no break-in period I'm sure they sounded even better the next day. I firmly believe in a breaking period as I've witnessed this with every component of Hi-Fi equipment. Next I got my wife in to listen.... We took 1 minute of a song..... You can do this with any song with a distinct variance in the music... and listened to it over and over at least 5 times. Then I pulled out the 2 stabilizers on the inputs...and just left in the speaker stabilizers and yes there was a distinct difference... clarity was gone.... muddleness emerged. We both agreed; so Installed the 6 channel and left the 2 channel out. The sound immediately cleaned up and openness once again emerged. Lastly I reinstalled the 2-channel stabilizer back to the dac (originally $2100.00 for the dac). And yes once again another subtle difference emerged in smoothness and more clarity.

Still something was lacking so next I added Oneac power conditioner 1960VA or 16 amps. An immediate difference was heard - silence emerged - noise departed and actually an awesome protection was afforded my system in the event of voltage spikes or brownouts as I also have a Samsung DLP TV. I was totally sold on all these components. But none the less - not on my 2 channel stereo sound. So next I bought a used 160-watt Yamaha amp for my front 2 channels and added 5n silver wire from my pre-outs with pigtails for the dakioms. I remade the original 5n silver wires from the Dac with pigtails for the 2 channel Dakioms (not needed as they come pig tailed). In my setup - I only use 5N silver wire (some sell for 6.00 ft per strand on the net) in 3 strands each to the positive and the negative for 6 strands total per cable in my RCA interconnects. I soldered 2 wire extensions from the speaker connections on the new amp back to the stabilizer for the speakers and 1 to the negative.

I now am very happy with this system - a long time in the making but lacking nothing. Total hollow imagery with instruments clearly placed around the room - a warmth and smoothness that is present at very high volumes. A total lack of harshness. Voices are clearly focused with lips smacking on P syllables and glasses clinking in the background that was never heard before; also in quiet spots a total lack of sound like a black hole. You can talk at very high volumes with no ear fatigue.... A total pleasure to listen too. I cannot comment on taking the dakioms out or what positive effect they would have had outside of the added Yamaha for the front 2 channels as I always planned on keeping them after I heard the difference on the Arcam alone; that's why I made my interconnects pigtailed to accompany them. The difference was so pronounced with the arcam ... why would you leave them out. These little units are a MUST HAVE - where many are just a waste of money. So (in my opinion) what a great home theatre system would cost - lets see.

Samsung DLP TV - 3700.00 3700.00
Arcam AVR-200 - 1300.00 700.00 (used)
Totem Tabu's - 3500.00 1200.00 (used)
Totem Mite-T - 600.00 600.00
Totem Lynks - 1100.00 1100.00
75 ohm Digital - 400.00 60.00 (not brand name)
5N silver RCA - 700.00 200.00 (build your own)
Pioneer 5 Disc - 200.00 200.00
Speakerwire 110' - 220.00 220.00
Muse Model 2 - 2100.00 450.00 (used audiogon)
Oneac CB1120 - 1200.00 100.00 (e-bay) 
Yamaha M60 - 800.00 150.00 (e-bay) 
Total - 15,820.00 OR - 8660.00

3 Dakioms - 187.00 OR - 2.15% of 8660.00

So how does the cost of 3 Dakiom's stack up to these prices... without them? All 3 cost me 187.00 or just over 2 percent of my home theatre setup cost of $8660.00 Big deal. This is a must have product that really works.... Congratulations Dakiom... Thanks...
 

Gerry D. (Lawrence, KS)

One of the things I enjoy about audio as a hobby is trying different tweaks to try to take my system to a higher level.

I had seen ads about DakiOm Feedback Stabilizers in the past, but I never really focused on them. A recent Audiogon ad reminded me about DakiOm, so I decided to investigate further. After reading the various reviews posted on the site and the discussions at Audiocircle, I decided to take advantage of the special offer.

The order arrived in 2 days! Since my Unico has 5-way binding posts, I had decided to get some bananas to attach to the A103 wires to make the installation neater and easier. I highly recommend doing this, as it makes attaching the A103 very easy. The R103 is as easy to install as a pair of interconnects.

After hooking everything up, I began by playing an audition disc that I burned to do comparisons when I make changes in equipment. Initial impressions were positive, but being a firm believer in burn-in, I just let music playing overnight before doing any critical listening.

As I have listened in the days following, I find that I would have to wholeheartedly agree with the claims made for these products. Bass is indeed deep, tight, and tuneful, but without any sense of bloating. The soundstage is open and airy, and is both wider and deeper than it was previously. Imaging is excellent, with instruments precisely placed in the presentation. What stands out for me, however, is the more realistic sizing of the instruments. Acoustic bass sounds like it's coming from something the physical size of the real thing! Everything has excellent tonality. Complex music is more easily resolved...... clearer.

The music is alive and in my room! Since my Unico has the built-in phono stage, I also get the benefit of the A103 when playing vinyl. The more I listen....the more I hear the benefits! I'd recommend these products to anyone looking to improve the sound of their system for a very modest investment.

System:
- Unison Research Unico Integrated Amp
- Jolida JD100A CDP
- Meadowlark Swift speakers
 

Emmanuel C. (Dugway, UT)

I AM DEFINITELY GOING TO ORDER MORE FROM YOUR COMPANY. YOUR PRODUCTS ARE EXCELLENT. YOU WON'T BELIEVE WHAT IT DOES TO ALREAY "TWEAKED" SYSTEM TO THE MAX. THE BETTER ONE'S SYSTEM IS, THE MORE THIS STABILIZER ENHANCES THE SOUND. THE MORE STABILIZERS YOU UTILIZE, THE MORE IT MAGNIFIES! AMAZING, CONSIDERING I HAVE MANY SOUND ENHANCING PROCESSORS. THESE STABILIZERS NOT ONLY ENHANCES HIGH END SPEAKERS, BUT IT ENHANCES OLD AND NEW SOUND ENHANCERS AND "UPGRADES" SUCH ENHANCERS LIKE WHAT I GOT: APHEX 204 EXCITER, OPTICAL BIG BOTTOM, SRSLABS PRO-220 SPATIAL ENHANCER, CARVER HAV-9 SONIC HOLOGRAPHY, ACOUSTIC RESEARCH TDS-202 enhancer. I would highly recommend your product to any serious entry-level to audiophiles. Note this to your customers: The more you apply the stabilizers to every component source, the more it enhances every piece of equipment. It cuts the distortion of amplified source and brings out most, if not all the lost signals from a recording, digitized or compressed analog. Great engineering. I should know! My dad is a retired electrical engineer, my eldest brother, former active duty in the vietnam era and current reservist, ELECTRONIC ENGINEER FOR RAYTHEON and my older borther electrical/electronic engineer in lawrence livermore lab somewhere...cannot disclose, and my background as a former high end home theater installer for convoy/audio video and others, and background electronic testing and schooling as a technician and 25 yrs of audio experience is credible enough to make this assessment! I have plans on purchasing more of your product as soon as I receive my CARVER AMPS, PREAMPS and some for my brother's system. When I receive my MARTIN LOGAN speakers, this should really TWEAK my ever changing system...Great job!

Follow-Up:

I just wanted to ad to my reviews regarding the stabilizers. As you know I have been using a variety of sound processors to TWEAK whatever system I happen to assemble just to get best and widest soundstage I can muster. I have vast experience in RANGE EXPANDERS from DBX...The dbx 3bx DS is the digital expander that was released in the early 90's and have done considerable job in recapturing lost signals on digital recordings from CD'S and in some case DVD'S. I used to restore and expand older CD'S from the 80's and it did quite remarkable job in bringing out signals that are not heard thru the impact restoration processor on the DBX 3BX III, the DS being the forerunner and DIGITIZE format. With the help of the carver holography, the sound is amazing. In comparison to the stabilizers, what the DBX EXPANDERS "DON'T DO" as excellent as these processors are, is bring in that BASS PUNCH on a sub or main woofer driver in a loudspeaker. In fact, THE DAXIOM stabilizers adds LIFELIKE clarity to cymbals, strings etc...without the brightness that can be caused by OVER EXPANSION AND RESTORATION from the DBX 3BX III OR the much more improved and DIGITAL FRIENDLY DS VERSION. In the mid 80's many of the engineers involved in the production of CD PLAYERS AND FORMAT did not recommend using SOUND PROCESSORS, ENHANCERS and or other related product for CD or digital use stating that it wasn't necessary because of the HIGH decibel rating. From my research, later on in the future...that belief was disproved by engineers of newly designed processors. This comes to the pinnacle of the subject which is the INVENTION OF YOUR PRODUCT...DAXIOM STABILIZERS. What some audio enthusiast and audiophiles don't realize, at least the critics which are few, is that products like yours are really REVOLUTIONARY to the audio industry. It doesn't COMPETE AND NEGATIVELY EFFECTS the manufacuterer of sound processors or other related manufacturers. Because of it's UNIQUENESS, it actually AIDS and ENHANCES past and CURRENT products of SOUND PROCESSING EQUIPMENT...examples are BBE maximizers, MILLENIUM 2.4.6 dts processor, DBX 3BX DS to name a few along with my most common used company names. In my opinion being backed up by previous audiophiles who have made great reviews on your products, SHOULD BE STANDARD IN ANY HI-FI AND HI-END SYSTEMS. Any installer of high end equipment being 2-way stereo to home theater is doing an INJUSTICE not utilizing, recommending and purchasing your stabilizers for their customers! Thank you for reading! 

"I WOULD RELATE YOUR STABILIZERS TO H20 OR WATER TO ANY AUDIO AND AUDIO/VIDEO SYSTEM" CAN'T LIVE WITHOUT IT OR THE SYSTEM WILL DIE OF THIRST!
 

Here's my review regarding to your stabilizers.

Thanks for the fast shipment and great products.

I've seen a lot of positive reviews from customers that had experienced with Dakiom Stabilizers and decided to try one set myself. I ordered the Home Theater Base Package for my system. After five minutes of installation time, I popped in one of my favorite CD and my first impression of the sound was the details, wider soundstage, and tighter bass. It feels like the whole band was right in front of me.

I then tried on some movies and I've noticed that the dialog from the center speaker is more clear and detail. The bass of the front and rear channel is punchier. After couple of hours of listening to the music and a movie, I decided to take the stabilizer off. My first impression was that all the details, soundstage, and tighter bass disappeared. It sounded like I put a pillow over my speakers.

I didn't have to listen for a week to tell the difference. It was so obvious even after a short period of time. I guess you probably know what my next action step was. 

EAD Ovation pre/pro.
Panasonic H1000 dvd player.
McCormack DNA 2 Deluxe.
Mirage M3 speakers.
 

Richard P. (Lake Butler, FL)

My Stereo System:
Sony str-v5 receiver
Sound Dynamics rts 9 speakers
Bravo D2 DVD player
Philips DSX 5500 DIRECTV Satellite receiver
Radio Shack Gold interconnects
Tweaks: Walker Audio: super silver treatment, Mi-Rollers, Freezer Cryo Tweak

First off, I did something that made these stabilizers sound even better! I put some Walker Audio super silver treatment on the wires of the A103 stabilizer and tips of the RCA connectors of the R103 stabilizer and then I put them in the Freezer for 24 hours and then I put them in the Refrigerator for one or two hours. Then I played music for about 5 days and these stabilizers improved a lot, this is what I heard after this Freezer tweak:

The improvement are that you hear a deeper tighter bass...not boomy and less distortion..........a much more three-dimensional sound..........less harshness........I also heard more inner detail in well-known recordings.........a broader and deeper soundstage, with very precise placement of voices and Instruments, both laterally and in depth..........The improvements are Dramatic!.........My stereo system is now more transparent.....the inner detail, transient clarity, depth of image, texture, dynamics and life-size stage has to be experience to be believed!!!....

There no need to see what the difference is with the stabilizers out of my system, the difference is Night and Day with the stabilizers in my stereo system! Update....... I order another stabilizer (R103) for my Satellite receiver and now my receiver does not sound Harsh or Dull now.

I would like to thank Kim Dao for putting this product on the market............It opens a window into a new level of listening pleasure!.........
 

Spencer D. (Wichita, KS)

After I read about these Dakiom feedback stabilizers, I couldn't wait to add them to my audio system. My system configured with Denon receiver, Marantz 5 disc cd changer and KEF C-95 speakers with Type 6 Audioquest speaker cables and highend RCAs provided warm and detailed bass, however, the midrange was harsh and not well pronounced. As we all know that midrange is the body of a great soundstage, I added a speaker optimizer which helped some, but not completely satisfied. Had to adjust or compensate too much when listening to R&B. However classical and jazz sounded descent. I just didn't have the dynamics and tightness of musical instruments that most separates provide, so I decided to try these Dakiom feedback stabilizers out, and "BOY" am I glad I did. First of all, delivery was fast and well packaged. Also I would like to thank Dakiom for their consideration of an error I made in my order. They replied expediously and gave me suggested order procedures. I noticed a difference in my sound immediately after installation of my stabilizers. I installed the audio source and amplifier speaker output stabilizers in my system and "WHALA". My receiver has high power and the stabilizers made it sound as though I was using separate amp and preamp configuration. The bass was even tighter than before. Mid and high midrange became ever so smooth and clear with silky highs. Musical instruments became a reality. Real and true. I don't have to adjust my system no longer. All CDs I play regardless of genre sounds astonishing. Thank you Dakiom. I recommend these stabilizers to anyone. Even the low end music lover will appreciate this addition to their system. It will make even non brand name equipment sound highend.
 

James L. (Brookfield, WI)

Here is my evaluation as promised. I am using:

- Marsh Audio Design P2000t tube hybrid preamp (I'm wondering if the dakiom would work with this unit)
- Marsh Audio Ht 500s 3 channel amp (2 A103+)
- Muse 100 amp for rear channel
- Parasound cdp 1500 cd player (R103)
- Marantz AV 600 ( I believe I'll be getting a couple R103's for it)
- Polk Audio LSI 15 speakers
- Monitor Audio ASW 210 subwoofer
- Panasonic dvd recorder (Using digital out)

These Dakiom stabilizers are a wonderful edition to my system. Ultimately they bring tightness and transparency of bass as well as a nice musicality. There are two things that I am always striving to improve in my system. 1 - To minimize digitalitis (the raggedness that can come from cd's) and 2 - Increase transparency (remove the grunge between the singers and instruments). These do both quite well. It most dramatically cleans up the bass and smoothes out the highs. A caution: Doing an A/B test to check their effectiveness doesn't always work. Some times the difference is obvious at other times it seems there is little difference but over time I believe you will be quite pleased with their charms. By the way, I intend to purchase more of your units before the 60 day discount grace period ends!
 

Sorry I took so long. The Dakiom is not compatible with my by rig, but I have found a very useful and worthwhile use for it.

I recently purchased a Grado headphone amp to go with my Grado RS1 headphones. I also own a headroom cosmic with Sennheiser 650 headphones. Initially listening to the Grado combination I thought it was very good but in no way competitive with the Sennheiser/headroom setup.

I took Dakiom and connected it between my Toshiba DVD (which plays DVD audio) Grado headphone amp I must tell you the sound is astonishing. Greater separation of air between musicians greater bass definition and bloom, it gives the sennheiser setup a run for it's money! I put on Hugh Masekela's train song and was blown away.

I have just purchased Aaron Neville's DVD. I listened on my big rig (levinson, electrocompaniet monoblocs, Dynaudio Special 25s w/vandersteen subs) after I listened on the Grado/Toshiba/Dakiom system all I can say is if you are a music lover and enjoy headphone listening there is a synergy between these components that must be heard to be believed.

I want to try it on my sennheiser/headroom setup but I need mini RCA plugs (I must find an adapter). My balanced operation (Dakiom are fitted with RCA plugs) and monoblocs have precluded me from trying them in the big rig, but my headphone system loves them. Highly recommended. 
 

Not having a 2 channel system as a main listening source since the advent of cable and surround HT. I decided to set up a dedicated room to listen to my old vinyl. Though I have 100's of cd's I found I just don't listen to them as much as I use to records.

Luckily I kept my record collection but had to put together some kind of basic system which now includes:
MMF-5 TT, Goldring 1042 mm cartridge,
Tandberg 3002 pre-amp
Tandberg 3006 amp, and
Jamo 707's speakers.

The first thing I noticed when this was hooked up was wow how much more music there was with even just an entry level TT and vintage separates. But I wondered if I could get more. Seemed something was missing, i.e.; soundstage and being able to hear separately the different voices or instruments. I thought monitors, better components etc, etc.

I decided instead to try a tweak. After much surfing I decided on the Dakiom Stabilizers. What a total improvement! Now I have a soundstage, I can hear everything, that seems to be in the grooves. Tight defined bass, clear as a bell highs. The only bad thing I can find about these products is that now I wonder how much more I might be able to get from the grooves if I do up grade the TT and cartridge! In any event I have settled on this final descriptive analogy with the Dakiom Stabilizers I feel as if I am in the recording studio listening to the final master cut as the engineer and artist intended for it to sound!
 

I came to know about the Dakiom modules (A103 and R103) via an ad in Audiogon. I was drawn to0 it simply out of curiosity. I was actually not looking out for anything in particular, just browsing through to see what items are currently on sale and satisfying my audiophilia nervosa. Following the link in the ad, I was brought to Dakiom's website and I browsed through it with interest. It only piqued and flamed the fire of my curiosity. Finally, after considering the offer (buy the 2 stated modules for $77 and write at least a 100-word review, 30 days money-back guarantee if not satisfied), I decided to succumb to my curiosity and ordered the modules accordingly.

Shipping was pretty fast (via International, I am currently stationed in France). Dakiom even contacted me via email to notify when the units were shipped out. Nice! When the boxes arrived, my initial impression was that they are nicely made pieces. For the asking price, it would be ridiculous to expect better finishing. I honestly thought that the fit and finish are well worth what I had paid for. Obviously, all these mean nothing if the modules do not work as advertised in my system.

As required for the review, I need to describe my 2-channel system. Digital components are CEC TL5100 (CD transport) and Perpetual Technologies P-1A and P-3A (ModWright modified to Level II status). The PT duo is powered by a Monolithic Perpetual Power Plant (P3). Digital wiring duties are performed by PS Audio Xstream (XLR - TL5100 to P-1A) and Revelation Audio Lab Prophecy (I2S - P-1A to P-3A). Power cords used are Revelation Audio Lab Cryo-Reference (P3 to both P-1A and P-3A) and Silver Audio Power Burst (P3 and TL5100). The analogue components are Creek P43R passive preamplifier and PS Audio HCA-2 power amplifier. Connecting them both together is done by Silver Audio 6.0, JetStream and Appassionata. I do have a TDS Enhancer connected between the Creek and PS Audio, as I like what it does to the overall sound of the system (that explained why I have 3 pairs of interconnects between the two components). Loudspeakers are currently NHT SuperOne XU monitors (although my main speakers are actually full range Hales Design Group Revelation 3, but I am using the NHT for the time being and for this review), linked to the HCA-2 via Silver Audio Symphony 48. Juice is sent to the HCA-2 via PS Audio Lab II power cord. Power conditioning duties are performed by Audio Power Industries 212 power conditioner and Quantum Symphony Pro (using Silver Audio Power Burst and Wireworld Aurora power cords respectively) plus Quantum ElectroClear QRT-1 modules (3 pieces). Tweaks used (and obviously found to work well) are Herbie Audio's Grungebuster (for top loading CD transport/player), Bedini Ultra Clarifier and Stillpoints ERS sheets. All helped to bring greater clarity and transparency to the redbook CD sound, while fleshing it out such that the common digititis aspect is greatly reduced (not quite SACD but close enough). Various footers were used effectively throughout the system such as Golden Sound DH Cones plus Squares (TL5100 and P3) and Vibrapods (P-1A, P-3A, preamp and amp).

Before I introduce the Dakiom modules into my 2-channel system, I proceeded with the usual "sound and familiarity" check by playing a couple of my favourite, as well as test, music. I am actually very satisfied with what I have put together thus far. The sound is musical with just a hint of neutrality but not so much as to detract me from enjoying the sound. Hence, the thought did cross my mind on just how the Dakiom modules can improve upon what I am hearing (there probably will be differences since I am going to introduce new components into the system, but whether its for the better remains to be seen).

The first module I introduced is the R103. I placed it between the DAC and preamplifier. The first impression was that the highs are now clearer, especially when cymbals are present in the music. The images are somewhat more solidified, with greater weight and density. Soundstaging seems to have expanded in width and depth, although the latter is more apparent. I am pleasantly surprised by this as I did not think these aspects were lacking before. I played through the entire gamut of CDs on hand for the test, and the above findings are consistent with every piece of music (vocal, jazz ensemble, slow rock band and orchestra). I honestly never expected to hear improvement; difference perhaps but not improvement. I define improvement as achieving greater satisfaction and pleasure derived from listening to music. The R103 did improve upon the system's ability to reproduce music, bringing a greater sense of delineation, space, ease and airiness to the overall musical reproduction. I was smiling after every piece of music played.

Next, I added the A103 to the output of HCA-2, as indicated by the instruction. The fabulous HCA-2 is a 150W per channel at 8 ohm power amplifier, so the regular A103 should do its job nicely (rated for up to 165W per channel at 8 ohm). Since I have heard the R103 in my system, it is safe to assume that I would expect the same from the A103, but perhaps not to the same degree of improvement wrought from the R103's initial introduction. Once again, I started playing through the gamut of CDs on hand for the test. It is no surprise that I heard an ever so slightly more of the improvement made by the R103, and that the net effect of having the two modules working together is actually cumulative. However, there is one particular aspect that stood out when the A103 was introduced, and that is bass weight and density. Although the SuperOne XU can only reproduced frequency down to 50Hz, the impression created by the A103 is that the bass is truly taut, fast and visceral in its impact. From bass drum to electric bass guitar, the low frequency reproduced (relative to the SuperOne output) has taken on a tighter and weightier presentation. This fact was also affirmed by my audio buddies when they popped over for the listening session with the R103 and A103 modules in place. We spent about 2 hours listening and comparing notes, and were not fatigued in the least. I suspect they will be making their orders soon as well.

After that dedicated listening session, the modules continued to remain in my system. Over time, I came to appreciate the changes made to the sound. Improvement can be a short-lived thing if the main factor was newness. New gadget, tweak etc always excites one's senses (especially an audiophile's one), for the simple fact that it is new. Time is the best modulator for any enthusiasm. It was the same experience I have had with the TDS Enhancer. Now, when I choose to remove the modules from the system, it took on a flatter overall presentation with lacklustre bass weight (it is not as bad as it sounds but it certainly is not as good without the modules). On the whole, the sonic presentation seemed softer (yet grittier when the music gets complicated) and less 3-dimensional. The sense of ease has also ebbed. Obviously, I quickly placed the modules back in their appointed places.

Dakiom did state that the modules will have different impact / effect on different system. This is very true as each system is made up of different parts. Even if the main audio components are the same, perhaps the wiring and whatever tweaks used are different, not to mention personal taste in music and sonic reproduction. That is why I wanted to write as comprehensive a review as I can, to share what I have experienced based on my system set-up. Musically, I do not have any strong preference except perhaps I do avoid heavy metal (have yet to appreciate and understand it). Nonetheless, the musical paces I put the Dakiom modules through via my system revealed that their net effect is consistent, cumulative and definitely cherished. The clarity, ease, weightier and more 3-dimensional musical presentation bring much musical enjoyment to me. The R103 and A103 modules are a keeper, and I do welcome them into my system unequivocally.
 

Dan P. (Dix Hills, NY)

Although I have purchased several Dakiom products before this is my first review. I have been using Dakiom products for almost a year now. I would like to thank Kim Dao for developing such a wonderful little device.

For my audition, I used two separate music systems: one for a computer gaming rig with 5.1-channel surround, the other for a living room stereo (already treated with a few Dakiom stabilizers). The computer system consisted of 

an Adcom GFP-400 preamp and
GFA-2535 amp with
Polk RTi series speakers.
The sound card in my computer is an Creative Labs Audigy 2.

The living room system consists of

a modified Rotel RCD-971 player,
Adcom GFP-565, and
a GFA-5400 and
GFA-535 which bi-amp a pair of
modified Kef Q55 speakers.
The headphones I used were the amazing HD600 Avantgarde, and
the handy noise-cancelling PXC 250, which I use for work and travel.

I had originally planned to purchase the Model Fm203 and installed it on my computer's sound card outputs with cables running to my stereo. I feel this setup is where feedback stabilzers will sound their best. The effect of the Fm203 feedback stabilizer is more pronounced when played through loudspeakers rather than headphones, in my opinion.

I did, however, manage to sample some music through two pairs of Sennheiser headphones and found the upgrade to be equally impressive.

Rather than a standard review I would like to share some thoughts about how I think the feedback stabilizers might work for you, and possibly clear up some misconceptions about them. First of all, when you install these stabilizers into your system nothing is actually added to the music, and yet our perception is that--when we compare them to a system with them installed vs. one that does not--we sense more bass, midrange, treble, energy, etc. In truth, the stabilizers themselves only make minor adjustments to the way (musical) signals are transmitted through your equipment--and ultimately arrive at your speakers.

Almost everyone knows that electronics degrade the integrity of whatever signal passes through them. In the audio world this issue has never really been addressed to any reasonable degree of satisfaction, since those who tend to listen to hi-fi systems also tend to buy the most expensive equipment in the belief that is will make their music sound better. Expensive hi-fi units are also thought to sound purer and be more faithful to the original recording. Inexpensive ones, however, are thought to use inferior parts and components and therefore do more damage to the music.

Such lack of quality often necessitates the need for internal or outboard signal processors, audio spatializers, and bass boosters/treble enhancers, etc. that can radically alter the signal in an effort to make the music sound more pleasant. But this is not often the case. So the less equipment, or "processing", the signal has to go through, the better it will sound.

With that in mind, it must be noted that the Dakiom feedback stabilizers are not signal processors, so to speak. One of the functions of the stabilizer is to restore what is lost by fine tuning certain elements of the signal, such as phase and amplitude, mainly by adding small amounts of feedback. This additional feedback can have the effect of extracting more signal where much detail would otherwise be lost, but also, more importantly, it will rejuvenate a degraded signal, which to our ears will sound harsh and glaring (due to a loss of information).

The minor implementations made by the stabilizer will essentially "pull" the contorted signal back into alignment. This is turn will restore pulse, amplitude, and directionality to the music. I would describe "directionality" as being not only where certain sounds are emanating from in the soundstage but also in which direction they are supposed to go. The sound of a live performance sounds real because not all of the music travels forward to our ears; rather, it reflects off of the walls and can refract off different surfaces.

A common praise we hear about the Dakiom feedback stabilizer is that the system sounds more laidback or that the harshness has virtually been eliminated. This may be true, but not because the stabilizers have attenuated the higher frequencies. I believe its because these frequencies are no longer compressed (to radiate in a single direction) and have become appropriately dispersed across the soundstage. The sounds do not hit your ear (directly) like they used to before. Everything sounds more relaxed and musical, but lifelike and full of energy.

These are just a few of the many characteristics I have noticed from my system since installing Dakiom's feedback stabilizers. If you have a decent playback system and an excellent pair of speakers I'm sure you will notice them as well.

Patrick B. (Oneonta, NY)

HA Layman’s Review of DakiOm’s Proposed F203 Feedback Stabilizers

Preliminaries:
In the course of several informative and congenial e-mail exchanges with Dr. Kim Dao, I was privileged to be given permission to audition/review DakiOm’s experimental feedback stabilizer, hereafter dubbed the “Exp.F203,” designed for headphone/head amplifier applications. Given my very positive listening experience with just a single one of Dr. Dao’s 2-channel R203 stabilizers on my rather modest A/V system at home, I leapt at the opportunity to hear what DakiOm(s) could do for my headphone system at work. DakiOm feedback stabilizers are connected to used or unused analogue audio outputs. 
My “office” headphone system was variously comprised of:
* 4 alternate audio sources:
(a) SONY disc drive from my hp d325 computer tower (provided by my employer),
b. ersatz “Walkman” ($15), 
c. jWIN DVD/CD player ($39) 
(d) Panasonic DVD S47S DVD/CD player ($100); 
* a Gilmore V2-SE headphone amplifier/pre-amp ($850),
* 2 alternate earphones:
(a) Sennheiser MX-500 earbuds ($20),
(b) Etymotic Logic ER-4S earphones ($330);
* a Signal Cable Analogue Mini (stereo mini-to-RCA adapter: $39);
* Joe Zen ($59), Straightwire Laser Link ($95) and Audio Research Pro Series ($20) RCA interconnects 
* two ErnieM do-it-yourself PCK 13Q power cords ($59 apiece): one on Panasonic DVD player and one on the Gilmore headphone amplifier;
* various Infinity Audio precision shorting plugs/terminators on unused pre-amp inputs and unused DVD player digital/video outputs;
* Herbie’s Grungebuster CD mat ($19.95), Marigo Labs Signature CD mat ($200).
For review purposes, I had on hand two (2) DakiOm Exp.F203’s, an R203 and an HR203. One of the Exp.F203’s went into the mini-plug source output (either source a, or b); the other went into one of two 1/4” headphone jack outputs from the Gilmore via the 1/4”-to-1/8” adapter that came with my ER-4S’s. The HR203 went into the (6) unused pre-amp outputs. The R203 went into the DVD analogue stereo outputs.
In Brief:
The short version of this review is simply that the DakiOm feedback stabilizers work exceptionally well. Their performance is consistent, uniform, additive, affordable and preeminently musical. There was not a single application in which the DakiOm failed to satisfy—no, better yet, delight. They are versatile accessories that soon become staple necessities on the audio train.
One-at-a-Time:
Please understand that music has become essential to my sanity and survival at the office, combating the frequent tedium and frustration that goes with programming and debugging computer programs all the livelong day. Music provides a soothing, long-term backdrop to practically all my programming tasks, as well as the occasional short-term excursion into critical (and unabashedly escapist) listening. 
To begin, I tried the DakiOms one-at-a-time-each stabilizer performing solo-at each of three locations. Firstly, a single Exp.F203 went into the mini output of my hp 325 tower. The resulting improvements were easy to hear: the presentation was much smoother, clearer, more expansive and detailed across the entire listening spectrum. Respective instruments and performers became better delineated, each imparting its own unique voice to the composition. All the musical elements occupied their proper places, not just spatially, but rhythmically, tonally, harmonically and dynamically. Instrumental sounds blossomed, became full and rounded, then naturally decayed. Vocals were rendered with more breath, throat, lip and tongue. DakiOm wasn’t getting just one thing right, or a few things right, or even most things right: it was getting everything right. That’s right, EVERYTHING. And meanwhile the sound of music, Music, MUSIC! was vividly emerging from the signal. 
Secondly, I removed the single Exp.F203 from the computer output and put it into the Gilmore V2-SE earphone output being used (the Gilmore has two 1/4” headphone outputs). Results were the same in terms of across-the-board quality of change, but the incremental quantity of change was somewhat less. Sound was slightly edgier, less clear, less expansive, etc., with the feedback stabilizer at the earphone output of the Gilmore versus the source output of my computer. This may be explained by the fact that the computer source offered more room for improvement. Dr. Dao mentioned that the stabilizers tend to “rise to the occasion” with respect to bringing about more improvement from the component in which more potential improvement exists. Another thing I found consoling in this instance was that the DakiOm brought about perceptible and significant improvements whether used on my non-audiophile computer disc drive or on my dedicated, “high end” headphone amp. 
Thirdly, I removed the Exp.F203 from the headphone output and put the HR203 on the 3 pairs of unused, RCA pre-amp outputs from the Gilmore. Again, the same across-the-board quality of change was evident, but this time the incremental quantity was on par with, or even slight more than, what I encountered with the single Exp.F203 at the computer source. Music was a bit smoother, clearer, more expansive, etc., with the HR203 on the unused Gilmore pre-outs versus the Exp.F203 on the computer disc drive (mini-phone) output.
Fourthly, I removed the HR203 from the Gilmore pre-outs and put a single Exp.F203 into the unused headphone output of the Gilmore. True to form and in keeping with the three previous applications, the DakiOm brought about a uniform improvement to every aspect of the music, but offered the least amount of improvement compared to the other applications.
In summary, using only a single stabilizer device, the hierarchy of improvement (most-to-least) went as follows: (1) HR203 at Gilmore pre-outs, (2) Exp.F203 at (computer) source output, (3) Exp.F203 at used Gilmore headphone output, (4) Exp.F203 at unused Gilmore headphone output.
A Digression:
Most of the stress involved with listening to the effect of a new “tweak,” for me, is hearing what’s been gained, but at the expense of what’s correspondingly been lost. So often one can perceive an apparent improvement in “resolution,” only to trace it back to an unwelcome shrinking of the soundstage and loss of ambience and musical synergy. I’ve rarely enjoyed the initial, experimental “improvement,” because it invariably comes at the cost of “looking over my shoulder” for how, in the end, I will pay sonically with a commensurate destruction of the music elsewhere─then desperately search for another tweak to offset the unpleasant side effects of the first one. It’s like taking a pill to treat high blood pressure, suffering the side effect of dizziness, then being prescribed another pill to treat the dizziness. It’s called an addiction, or dependency. It’s how the immorally prosperous pharmaceutical industry turns a profit; and it’s how the often unscrupulous “high end” audio industry primarily makes its fortune, too.
The good news for you and me is that, with the DakiOm in place, nothing was missing. In fact, the more I listened, the more the music surfaced. No holes, no gaps anywhere. To the contrary, there seemed to be a surplus of music. I listened to the same song over and over again. Each time I was content to follow one just aspect of the music: lead vocal or back up vocals or bass or strings or drums or intermittent triangle hits, for the duration of the entire song. Every little thing became integral and indispensable to the whole, balanced musical _expression. The music seemed inexhaustible, but not fatiguing; relaxed, but not sluggish. The DakiOm feedback stabilizer simply renders music, and is the surest cure I know for chronic and acute rashes of “what’s the next tweak I need” sickness? I don’t need another tweak. In fact, in all fairness to what the DakiOms do, they shouldn’t be categorized merely as tweaks; they’re much more than that: they’re organic extensions of your existing components, hanging off like the vital tail to your trusty retriever, and serving you just as loyally. 
Did the Exp.F203 make my computer drive sound like an Arcam or a Theta transport? Probably not. But it did succeed in extracting seemingly every last ounce of enjoyment that my humble disc drive had to offer. I’m a cheapskate by nature, so getting my money’s worth is the greatest boon to the success of any addition to my audio system. In the clichéd “bang-for-the-buck” scheme of things, DakiOm earns my highest recommendation. I mean, is $99 (for an R203) or $169 (for an HR203) too much to pay for a veritable banquet of blissful music? (I’m not sure how much DakiOm will charge for the F203, should it come on line to the public, but I’m guessing something comparable to what they get for an R203.)
Two-at-a-Time:
Added to the office system in pairs, the DakiOm feedback stabilizers exhibited an additive effect in keeping with the hierarchy mentioned above. In the order of most to least effective, the pairwise combinations went like so: (1) HR203/F203 at audio source, (2) HR203/F203 at used headphone output, (3) HR203/F203 at unused headphone output, (4) F203 at audio source and at used headphone output, (5) F203 at audio source and at unused headphone jack, (6) F203 at both used/unused headphone jacks. In each of the six above configurations, the two together were better than either one by itself. 
Again the improvements were across the board, but augmented/bettered by the addition of a second DakiOm. Now I could hear more complete sounds; for example, with plucked strings (from Hiroshima’s “Go” CD), the initial attack, the ring of the pluck, the swelling of the string tone, the decay and overtones became more articulate, more individuated and better paced. Bass drum smacks and stand-up bass riffs became more articulate and rich, giving a more vivid sense of the notes’ achieving a fuller roundedness in the body of the instrument. Air and instrumental or vocal weight became more differentiated, with notes taking on even more distinct characteristics of the thing or person that produced them. I have a CD of Chinese pop hits from the early 90’s. No, I neither speak nor write Chinese, but I love to hear how differently Chinese vocalists use their mouths, and from where they project the sounds from inside their mouths. I listen to the voices as I would another instrument (since I don’t really know what they’re saying). Sung words became more articulate and easier to understand. There was more guttural “gravel” in male vocals. It was captivating to “listen through” the constituent parts of word sounds. For example, I could hear “p” sounds originate with a soft pop on the lips; then I could hear the lips part with that moist, fleshy peel; then the initial puff of expelled air at the front of the mouth; then the air following behind from the back of the throat; and finally the wavering and diminishment of the breath itself. I realize that the Gilmore already excels at resolution and detail, but the DakiOms seemed to turn it up by an order of magnitude. And all the while more music kept coming through. Usually, I get buried in such detail and listen much too critically—probably because I’m hunting down what seems to be missing. Many of my listening experiences conclude in discontentment, and I end up having heard no music at all, being instead overly vigilant only to what the tweaked gear didn’t get right this time. Such is decidedly not the case with the DakiOms. Again, they render such completeness to the music; the many, many extra details the stabilizers extract from the recording fit snugly into a single, unified, balanced _expression of the performers’ art. I was both completely captivated and more than content with what I was hearing. In truth, I wanted to listen another time, in order to try and catch what I’d missed the time before.
All three DakiOms at once: 
As you are sure to have already guessed, things got even better, in all the right places and in all the right ways. More of EVERYTHING—especially music! All I have to say is that the improvements were consistent, uniform, additive and evermore musical. Music simply blossomed to new and better levels.
The Versatile DakiOm:
I will note that while the DakiOms apparently derive the maximum potential from any component they are used with, more potential will be tapped with better components. For example, my experience using the feedback stabilizers with my computer disc drive was excellent; however, it was even better with my Panasonic DVD S47S, a very good budget performer in its own right. Sound was rich, open and detailed with my Sennheiser MX-500’s (another budget over-achiever); but the musical experience was made even richer and more arresting with the Etymotic ER-4S’s. The bright character of my Straightwire interconnects remained evident when in series with the DakiOm R203; and I much preferred the Joe Zen’s to the Straightwire Laserlinks. This is actually another testament to the versatility of Dr. Dao’s stabilizers: they find a home—and they deliver the musical goods—in all types of systems. They bring distinct satisfaction to your listening experience, whether your system perches on the low, middle or high end of the audiophile scale. The DakiOms’ chief strength lies in their uncanny ability to derive music from whatever component they find themselves attached to. You can take the DakiOms with you through every stage of your upgrade path, where they’ll secure a rightful and laudable place in just about any system configuration. 
In my opinion, the proposed F203 headphone stabilizer should find a ready market among head-fiers (along with the R203 and the HR203). A 1/4” jack may find a wider market than the 3.5mm mini-phone plug, too, since the mini-crowd, which primarily uses portable gear, tends also to be on a portable budget. I don’t envision many Walkman-only users (who walk and run while they listen) employing the 3.5mm DakiOm F203, either, because although they probably would welcome the gains wrought in musicality, they probably wouldn’t warrant the added bulk or price. Fixed, home or office applications would supply the main market, I am guessing. (Keep in mind that I am not a “Walkman” type of guy, so this is only my opinion.) However, the mini-plug worked well for me, since that’s what my Etymotic ER-4S’s employ (I had to use a 1/4”-to-mini-phone adapter between the Gilmore and the Exp.F203). In addition, I had fun using the Exp.F203 on the mini-out to my multi-media speaker system to clean up garbled dialogue from old, dubbed kung fu DVD’s. I also ran it between my wife’s Walkman and her little stereo system—again to significant effect. IPOD or MP3 users who hook up to their home systems may well benefit from the DakiOm F203. The next time I fly, I will be sure to bring the F203 along for bettering my listening pleasure. Over the days and weeks ahead, I will lend one of my test units out to various colleagues at work to garner their impressions. In any event, I would encourage an initial test marketing of the F203 to discern what segments of the listening world are most apt to make such a purchase. 
Endnotes:
Needless to say, I purchased the test versions of the F203 from Dr. Dao. (In addition, I bought another R230 and an HR203 for my home theater components.) And I ended up re-vamping/optimizing my office system. My Panasonic DVD S47S (which formerly occupied my A/V shelf at home) now stands atop my work desk, with the DakiOm R203 attached to its stereo outputs and the Joe Zens linking the R203 to my Gilmore V2-SE. The HR203 has found a permanent place at the unused pre-outs of the Gilmore. One Exp.F203 is attached to the used headphone out, which services my Etymotic ER-4S’s, while the other Exp.F203 dangles gracefully from the unused headphone output. Wow! Talk about alluring! Layer after layer of music unfolds effortlessly and enduringly. 
Now I’ve just put on the Chinese, 90’s pop CD—whose liner notes I still can’t read and whose lyrics I still can’t understand-for probably the 20th time. Hold all my calls, please. These DakiOms are staying right where they are, and so am I . . . lost in the lush music-scape like never before!
Many thanks to Dr. Kim Dao for his noble and successful efforts to make more music more affordable to more people like you and me.
BRAVO-and Happy New Year- DakiOm!
January 27-February 10, 2005

POSTSCRIPT 04/05/2006:
The new-to-market F203’s sound even more musical, liquidy, open and transparent than the test versions I auditioned last year. With DakiOms in place, be assured that you, the listener, leave few, if any, essential audiophile “stones” unturned.
DakiOm continues to deliver readily discernable, across-the-board improvement and musicality in the latest version of my dedicated headphone system, consisting of:
(1) RAM-modded Samsung DVD-HD841 player with full, premium mods +SuperClock 3
(2) SinglePower MPX3 headphone amplifier, with premium upgrades and NOS 6SN7’s
(3) AKG K701 headphones
(4) DakiOm feedback stabilizers: 1x HR203 at source outputs
1x R203 at unused amplifier outputs
2x F203 at headphone outputs
(5) Paul Speltz Anti-IC’s or MillerSound IC’s
(6) PowerVar ABC-400 AC conditioner
(7) ErnieM PCK-13 power cords
(8) Marigo Signature CD Mat
(9) Duende and Herbie’s tube rings 
(10) PAC Digital Interface
(11) Infinity Audio shorting plugs
11. DIY “brilliant pebbles” and “cloud ten” damping devices; Totem Beaks (on amp caps). 
Thanks again, Dr. Dao! 
 

Abhijit D. (Kuwait)

Hi Kim,

I am stunned with the change in Sound after installing the Feedback Stabilizers in all points in my Audio Chain. Although, I have a fairly hi-end system, I did not realize that this meager investment will make such an improvement. The midrange has bloomed, the high frequency is smooth as a velvet, the bass is controlled and tight (I was earlier wondering how to control due to poor acoustic of my room)a and top of it the imaging is superb both vertical and lateral.

The transients have also improved dramatically. I could now distinguish each and every instrument and their location, earlier they were smeared. Vocals and string instrument has become very prominent. Listened to Marian Mcpartland’s ‘Falling in Love with Love” (Album- Reprise) piano sounds like listening in a private concert sitting in the 2nd Row. – Sound emerging out of a grand piano, Mike Sterns’ guitar on “You never know” (Album - Between the Lines) – what a difference – every cord is so distinct!!

To sum up, I am extremely happy and satisfied with your product. Thanx for the deadly creation at such a reasonable price!! 

Associated Equipment & Accessories

1. Plinius SA102 II Power Amplifier 
2. Martin Logan SL 3 Speaker 
3. Sonic Frontier Line 1 Tube Pre-amp ( Siemens NOS tube) 
4. Wadia 861 CD Player 
5. Aiwa XK-S9000 Cassette Deck 
6. AKAI KT-5020 Synthesized Tuner 
7. MIT Z center 
8. Power Cords – Voodoo Black Dragon, Silver Dragon, Mana Power Cord 
9. Speaker Cable – D.H. Labs’ Q-10 Bi-wire 14’ 
10. Interconnects – D.H. Labs’ Silver Revelation Balanced Cable 2 nos. (CD Player- Preamp, Preamp-Power) 
11. Cable Stand - Granite Audio’s Porcelain 4 each channel 
12. Lovan Audio Video Rack 
13. Bass Buster and Room Tunes Acoustic Treatment 
14. Dakiom Stabilizers 
a) MA-203 – 2 nos (Speaker out in Amp) 
b) X203 – 1 no. (Pre-amp to Power Amp) 
c) X203 – 1 no. (CD Player – Preamp) 
d) R203 – 1 no (Tape Deck-Preamp) 
e) R203 – 1 no. (Tuner – Preamp)

Machani (B.C. Canada)

Background
I was intrigued by the buzz in Audiogon about the Dakiom feedback stabilizers, paying special attention to the suggestions by some reviewers that certain mid-fi components could be brought to hi-fi levels. Initially I dismissed what looked like tall claims in the Dakiom website, which suggests, for instance, that a $200 amplifier could be brought to sound like a $2000 amplifier. My curiosity was piqued nonetheless, enough for me to do some reading up on the technology behind these black boxes.

According to the Dakiom website, negative feedback circuits are prone to oscillation and instability, and "DakiOm Feedback Stabilizer Technology provides variable impedance elements into the circuit’s open-loop gain to detect and steer away from positive feedback conditions allowing true, high quality sound to emerge." I found that there are at least two patents for the device by Dakiom's founder, Dr. Kim Dao, a PhD from University of Wisconsin , Madison .

Curious about the science behind the concept, I Googled "negative feeback amplifier" and found a number of articles of interest. The consensus among the experts seemed to be that negative feedback is a necessary evil, but one that can result in fluctuations, instability and signal artefacts. This is perhaps the reason why some of the best designed components in the marketplace today, including high end SET amps and Class D amps, employ no negative feedback.

Dakiom has a 30 day money back guarantee that seemed pretty iron clad, so I decided to give them a try, initially ordering one R203 stabilizer to try with my Marantz CC4300 CD changer.

R203 on Marantz CDP
My R203 arrived a few days after I placed the order, neatly packaged with simple installation instructions. I applied ProGold before installing an R203 on the analog out of my Marantz CC4300 CD changer.

As a general rule of thumb I do not like having to strain to hear differences when evaluating new audio components - to avoid succombing to the "psycho-acoustic" effect. I have to be absolutely convinced that the new device makes a noticeable difference to the sound, and that the sound with the device is better than without. That said, I remember that it took me about half an hour to figure out what the Dakiom R203 was doing to the sound from my Marantz. I listened to a number of tracks and began to realize that the sound of instruments and voices had became more real, almost visceral and exciting. The sound of piano, in particular, became more natural and true to timbre. The sustain sounded more melodious.

I paid special attention to the top end and dynamics. There was a clear improvement in top end detail and "bell shape" smoothness without any added harshness. The shimmer from cymbals became more apparent. There was absolutely no drop in dynamics, although there was a slight removal of grunge from the bass and glare from the treble. The R203 did not seem to increase the bass weight but it did improve the timbre and texture, making the bass sound more natural and less boomy.

I did not perceive any particular opening of the soundstage with the R203, but there was slightly more precise rendition of the location of sound objects. There was slightly more clarity at the rear areas of the soundstage. Instruments and singers took on a more solid presence and there was better separation between them. Busy music with a lots of percussion, cymbals, brushes and maraccas that used to sound blurry sounded more focused and separate. The Dakiom darkens the background and removes white noise from the foreground. At the expense of sounding clichéd, the veil was being lifted and I was hearing details I never heard before.

Interestingly, I observed that the R203 made some music tracks sound forward, while in others it made them slightly recessed. All the same, my system sounds closer to the truth with the Dakiom.

Not to be left out is the Dakiom's ability to removes listener fatigue. I could relax and listen to mustic for long periods of time without being fatigued. Now, going back to my point that a component must make a noticeable difference to the sound, I decided to follow the Dakiom website's suggested test - to remove the device and listen to my system for half an hour without it. With the R203 removed, the realism and excitement diminished and white background noise became more noticeable. Just a few minutes of playing my system without the Dakiom was enough to convince me about the effectiveness of the product. I found myself straining to hear the details I had heared. With the Dakiom reinstalled the notes began to just flow, with no straining to hear them.

R203 on Tube Audio Design TAD-150 Preamp
When I tried the R203 on my TAD-150 preamp outputs, at ideal listening volumes it seemed to reduce background noise and add a touch more focus, but did not much else. However, it did require me to put some effort a to hear differences - contravening my general principle not to have to do so. So in the end I removed the R203 from the preamp and reinstalled it on my Marantz CDP, where it had the biggest positive impact.

A203 on Cayin TA-30 amp
With my positive impression of the R203 on my Marantz, I decided to give the A203 a try. I sent Dakiom a message asking whether this device would work on my Cayin TA-30 tube amp, which is a Class AB push-pull tube amp. I received a prompt reply from Dakiom saying it would, including a confident assertion that after installing it I would not be able to take it out of my Cayin amp for even 5 minutes. Boy were they proven absolutely right!!

After installing the A203 on the outputs of my Cayin amp using banana plugs (the speaker cables are connected with spades), I pretty much heared all the improvements noted above with the R203, but the improvements were further magnified. But this time around, the A203 opened up the soundstage by a wide margin! The images took on a solid, tightly focused form and any remaining white noise was mostly wiped clean. Besides soundstage, the A203 made a palpable improvement in bass weight, dug deeper and produced bass notes which I never heard before.

In terms of incremental improvement, the A203 made a much more dramatic improvement than the R203, and it required no special effort to feel the change. In short, the A203 added a new level dimensionality and realism to my Cayin amp! There was a break in time 10 - 15 hours after which the soundstage opened up further and top end become even more clear and "bell shaped" smooth.

Then for the acid test, I took out device from my amp and listened. There was an immediate constriction of the soundstage and drop in realism! It took me no more than three minutes to decide that the A203 needed to be back on my amp!!

Conclusions
I am absolutely convinced of the value of the Dakiom on my setup. The Dakiom devices took my system to new level in enjoyment and emotional connection to the music. The impact is exciting and visceral and got me closer to the truth. They allow you to hear the essence of the music and do not add artefacts.

The extent of improvement with A203 was almost amazing. I definitely cannot remove the Dakioms. They are like missing pieces of a puzzle in my system.

The Obligatory YMMV
The device is designed to work on negative feedback and do not work on amps that don't use negative feedback. So they apparently may not work on high end SET amps and Class D Digital amps.

Dakiom's website lists over three hundred components on which the device has be used succesfully. If your component is not listed, just send them a message describing your component and you should receive a promt reply.

Equipment:
Amplifier: Cayin TA-30 (without Bizzy Bee feedback control mod)
Pre-amp: Tube Audio Design TAD-150
CD player:  Marantz CC4300
Speakers: Quad 22L
Cables: Acoustic Research MS230 ICs, DHLabs Q10 speaker cables
Music  used:  Many genres, mainly jazz, blues and acoustic rock
Room: 14 x 12 x 9

Daniel N. (Milwaukee, WI)

Amp: Carver TFM-25 high current high voltage low feedback amp
Preamp: Carver CT-6 with holographic sound
CD: Carver 5 CD changer
Speakers: 2 bookshelf speakers (Ascend Acoustics CBM-170) and
Subwoofer (SVS PB12-ISD)
Headphones: Sony MDR-V900
Portable device: iPod

When I was in the process of deciding what stereo to purchase I was looking at a lot of review sites etc. I happened to come across a link to the Dakiom site. I just kinda filed it away until a few months later when I had my complete system up and running. Then I went back to the Dakiom site and decided on purchasing the Model A203 just to see what it did. I wanted to get all the interconnects but I really didn't want to spend the money at first. So I decided to try one device and see the effects and then decide if
I should buy the interconnects for all of my devices.

I had and only Pioneer(cheap) amp in the attic and I decided to bring it down for a test. Without the amp stabilizers on this amp sounded so bad I was barely able to listen to it for more than 15mins at a time. However when I put the amp stabilizers on the sound quality dramatically increased and was actually musical. Then I tried the amp stabilizers on my Carver amp. The effect was noticeable but it did not make a dramatic change on my Carver (the Carver amp I have is a low feedback amp and this may be the reason). At this point I wasn't convinced enough to purchase the interconnect stabilizers as I thought maybe it only improved low end equipment (my low end Pioneer dramatically improved and my higher end Carver only moderately
improved).

However I was looking at the web site again and reading reviews and noticed that some people said the biggest change happened when all the interconnects were done. Since DakiOm has a great service department and a great guarantee with prepaid return shipping if by chance you don't like the product) I decided what the heck I'll just give this a try.

I wasn't disappointed in fact I am absolutely amazed at how good the sound is when all the interconnects (CD and preamp) have been stabilized. The clarity of the sound increased especially in the highs (they seem crisper) and the lows (the seem tighter with less boom). But the biggest difference I noticed was in the soundstage.

The Carver pre-amp already provides excellent soundstage with it's holographic sound but with the stabilizers on this was increased another notch. To me the only way to describe it is like putting on "audio glasses" for the first time. Every sound came into focus. The soundstage and instrument locations were clearly defined with no overlap or muddling as before. Now it seems like the individual sounds come from
distinct locations with total silence in the areas between. Amazing!

Do to the distinct improvement in sound quality and listening enjoyment I decided to add the final stabilizer to my system the Fm203. This I use for hooking up my iPod to my stereo and once again the results are the same as the other stabilizers: cleaner sound (better highs and tighter bass) and a much better defined soundstage. I didn't notice much difference when listening through headphones because I think the greatest improvement comes from the soundstage size; but with headphones the soundstage size is limited to the distance between the ears. So although I didn't notice much difference in sound with the Fm203 when used with headphones (although there was a little difference in sharpness and clarity as the music just sounds more crisp) I did notice a big difference when used to hook up the iPod for external playback (through my stereo).

Honestly these devices to me represent one of the biggest advancements in musical enjoyment for the money that I have made. I am happy that I have them and I definitely won't be sending them back!! I personally love listening to music and these devices have made listening all the more enjoyable. Thanks.

Peter C. (Altadena, CA)

First of all I was not looking to tweak or upgrade my current audio system. I was just looking at Audiogon to check on what the going market was for Def Tech loudspeakers. I recently upgraded from the Def Tech BP 7004,s to a MUCH MORE DETAILED and REVEALING audio speaker. the Monitor Audio Gold Ref 60's. I have had these speakers for about 2 mos. I have probably 100 hrs of listening on these babies. I thought my new addition of these speakers would bring me that much closer to musical nirvana. Up until your ad for stabilizers that is, Something in my brain said why not inquire about these stabilizers. I thought in the back of my head maybe these could further enhance my system. I read the many reviews on your website and decided to take a gamble and see if there could be a slight improvement to my audio system. I purchased 2 A103's for my power amp ( Odyssey Stratos w/ cap upgrade) a R103 to go to my preamp/processor (Rotel RSP 976) and a R103 to my cd player ( Ah! Njoe Tjoeb 4000 w/upsampler). I ordered them on a Friday and they came on that very Monday. I had already had my test cd's available and was very familiar with the sound my system revealed. As I said I thought there might be a slight improvement I did not expect a DRAMATIC improvement. Now my Monitor Audio's come alive, better bass slam, improved midrange and nuances that were not there before, highs are even clearer than previously noted. The cymbals sound like they are in my listening room and I am drumming with the band. The biggest test was when my wife called to me from upstairs and said she thought the vocals by Patricia Barber, Diana Krall, and Joni Mitchell were more realistic and she had to run downstairs to see if I had purchased a piano for our listening room ! Man you should have seen the grin on my face! The strange thing this product has only been in my system for about 24 hrs. I can only imagine what these will sound like as they are broken in longer.. I am definitely going to let my friends know about this product. Give this product a try you will not be sorry. As for the return label in the box, it is now somewhere in the bottom of the trash. These are keepers. Happy listening!!
 

Chris C. (New York, New York)

My Two-Channel system: 
-Speakers: SOLILOQUY 6.2
-Amplifier: Pass Lab Aleph 0s
-CDP: Njoe Tjoeb 4000(with upsampler)
-Pre. Amp.: Cary/AES AE-1
-IC and Speaker cables: Virtual Dynamics Reference
-Power cord: Virtual Dynamics Nites and Elco HPC-10SP
-Power Conditioner: PS Audio HC Ultimate Outlet and Chang Lightspeed 9900
-Tweaks: Aurios MIB and Cones.

Before I used the Dakiom, I though I had a well tweaked system with all the power cords, conditioners and anti-damping devices. I didn't think that I would achieve any huge sound quality improvement without changing major components in my system. I waited for two months after I saw the ad in Audiogon because I thought it was one of the hundred new tweaks that you can see from Audiogon. After I installed the Dakiom, the first thing I noticed that the background was even quieter than before. The music was smoother than before with fuller body and provided some soundstaging improvements. The female vocal has more air, more balanced and each note was clearer. With the tube CDP and preamp I have right now, the sound was smooth and layback, but sometimes lacks some emotion. After installing Dakiom, the music seems to be zoomed in a little. Now I feel more involved in the music and feel more dynamics with each note playing. I can spend longer time listening without feeling fatigued. As an A/B comparison, I took Dakiom out of my system after one week to see how my ears responded to the changes. I was amazed to find out that the sound was kind of dull and a little harsh. After a few days, I was used to my old sound again, but something was definitely missing. Overall, the Daikom provided a significantly more enjoyable listening experience, due primarily to reduced listening fatigue, and secondarily to better detail, balance and soundstaging.
 

Jaime M. (Austin, TX)

Here's my review. Thanks for the product.
About a month ago I was on the internet viewing the Audigon website. I came upon an advertisement for the Dakiom stabilizers. I decided to go for this BIG purchase. The total amount for 2 R103s and one A103 including shipping was about $115. When I first opened the package I received, I was surprised to find a return label also enclosed. My thought was, "These folks have courage and must really think something of their product to send a return label along with the product." We'll see.

I installed these stabilizers onto my system. One R103 was installed on the connection that goes from my MSB III Dac to a Sun preamplifier and
the second R103 was installed between the preamplifier and a PS Audio HCA-2 amplifier.
The A 103 was installed between the amp and my Infinity Kappa 7 speakers.

I then turned the music on. I wasn't that encouraged by what I initially heard. Something was missing. I continued my listening session and to tell you the truth that first session left me unimpressed. My initial thought was these little puppies are going to take some time to burn in. I was right. A couple of days later, I sat and listened again. Something changed. Cymbals had more of a flash and a decay to them. Chimes also lingered a little longer and sounded almost realistic.

Everything sounded better than the first session. I found my self on this second session just chilling for almost four hours of music. Just tapping my toes and sitting there in my recliner until I realized it was way past bed time.

On the third session, I found myself saying "WOW" several times. The music sounded even better than the second session. And since then everytime I've turned the music on, I've been impressed with some nuance or detail that I haven't heard before and by the fact that the "you are there" factor is getting better.

The following items are summaries of my listening experience with the Dakiom stabilizers installed: On Robinella and the CC Stringband, the sound is incredible. It's almost like the band is playing right in front of you. Her voice just flows through. The guitars sound like they are right in front of you. You hear the sound of when the note on the guitar starts and you hear as the note is ending. And I'm not just talking about the notes at the end of a phrase, I'm literally saying you hear this with almost every note that guitar is playing. I thought I already had this impression with my system previously but this tweak just made it so much closer.

On Nicolas Payton and Doc Chilton , these two guys are playing a trumpet duet just for you. On a recording by Del Castillo called Vida, the tenth cut is a recording of a live nite club show. Guess what? You are sitting at that nite club with those acoustics hitting every part of your wall. The recording was never that flat on my system, but this tweak made it so realistic, it was incredible. And how do I know this? Because on the night before I was sitting at a night club listening to a band called The Brew that has a similar sound.

On Patricia Barber's recording Modern Cool , the sound is incredible. There are several passages where it's just her and the piano. These stabilizers let you feel the phrasing of her words and let you feel more of the expression on her piano playing. This technology these stabilizers have somehow or another makes your system sound more musical and life like. The expressions and the intentions of the musician are easier to hear. Even if you've listened to a recording several times, you'll be hearing details you hadn't heard before.

These folks do have some courage. Based on the rest of my experience with this product, those return labels are probably just being thrown away. I know I've thrown mine in the trash. These Dakiom tweaks are one of the best investments you can make if you enjoy listening to music at home.

My system consists of
a Sony ES900 carousel CD player, that is several years old.
The player is connected to a Monarchy Dip then to an MSB III DAC that has a separate power supply. The DAC has been modified to include dual op amps for each channel.
The DAC is connected to a Sunfire Reference preamplifier and the preamplifier is connected to
a PS Audio HCA-2 amplifier.
My speakers are Infinity Kappa 7s that are now several years old.
Thanks for this product.
 

Tim V. (Sydney, Autralia)

Dakiom Audio Feedback Stabilizers Review Equipment used:
-Sony XA5ES cd player
-Nottingham Interspace Turntable
-Rega 300 tonearm
-Dynavector 17D2 MC cartridge 
-Dynavector P100 Phono Preamp 
-Valvemark Passive Preamp
-Valvemark Nimbus Valve Power Amp
-Klipsch Heresy 2 Speakers

I have been a keen music and hifi lover since I was in my teens and have changed equipment many times. I saved the Dakiom page as a favorite at a time when the Dakiom special offer was not available outside the US so when the special offer became available to other countries I jumped at the opportunity to test it. I purchased 1 A103 and 3 R103s. The R103s were hooked to the outputs of the cd player, phono preamp and passive preamp and the A103 connected to the speaker terminals on the power amp. I thought the sound was pretty good without the Dakiom Feedback stabilizers connected but the sound improved noticeably in nearly all areas after they were attached. The clarity of vocals and instruments improved. The background was indeed very quiet. The soundstage became deeper and wider and I could definitely hear increased detail on most music I played. The Dakioms seem to untangle the mix presenting a better separation of sounds than previously and very noticeable was the shimmer on cymbals etc. The sound appeared smoother less strained and more free flowing. The music seems to hang in space longer. This certainly gives a real live/lifelike feel to the music. The improvements seemed to me to be greater with cd than analogue source but the improvements are still very worthwhile for record playing. Bass seemed nice and tight and air and space around the instruments improved significantly. The entertainment factor has really increased for me using these. I now feel a stronger desire to listen to music.
 

Vo T. (Las Vegas, NV)

I never have any tweak before in my system. But after reading some great reviews on Dakiom web site. I can not wait any longer to try the Dakiom products. Nothing to lose with its money back policy. I got 1 R103 and 2 A103 to use in my system as follow:

Toshiba SD-9100 DVD STAX CDP Quattro (now replaced with TIMBRE TT-1 DAC)
Pioneer F-91 Tuner
Perreaux SM-6C Pre
Pionner A-27 Vintage Amplier (for Karaoke)
Sony N-90es Power Amp
MUSE 300 Mono Amp.

I used both A103 and R103 on all of my components. Try it several weeks, with and without for several times and like all other reviewers, i always feel more musical, natural, bigger soundstage... and my last word is: easier listening music with DAKIOM products on my system, even my wife can notice and loves the sound of DAKIOM. Once you try the DAKIOM product on your system you can not live without it. That is for sure. DAKIOM's victim.
 

Hi, below my review of the Dakiom modules:

My system is composed by: 
Integrated amplifier Krell Kav 300i 
CD Player KRELL 250 
Speakers Martin Logan Scenario 
Silver Audio signal cables 
Transparent MusikLink Plus speaker cables 

The inclusion of the Dakiom modules has brought immediately a benefit. I could dwell on the fact that the bass has become more clean, the mids more present, the trebles more sweet but at the same time more detailed, the scene has widened;

instead, what I want to underline is that the music has become a lot much pleasant. It is more "true", more persuasive, it has lost a good deal of "digitality", it is more liquid and warm. And all this without a loss in details.

Without any doubt the purchase of the DAKIOM modules has been one of the most important in my audiophile life: they are indispensable!
Thank you very much!

Follow-Up: 

Recently I ordered an additional R103 module, to use it with my Pioneer CD Recorder. Once in a while I use the Pioneer as a CD player, so I decided to buy a R103 for it. The results, paradoxically, were even greater than those obtained with my Krell CD250 player. A wider scene, tighter bass, sweeter trebles and less confusion in the musical message.The result, anyway, seems to be more evident with cheaper machines than with top-ends. The hi-end systems, having by its own a better quality, benefit of DAKIOM modules as an added refinement, while for the cheaper machines the R103 represent an huge improvement. I recommend the DAKIOM modules as a "necessory"!
 

Lon L. (Delmar, IA)

I was skeptical at first as with most tweaks. Dakiom offered a money back trial so I figured I could not lose. 

I installed the amp stablilizers (on a pair of Sherbourn monos) and strained to hear an improvement. I then installed the inline R 103 between the pre and amp and noticed some nuances. I left them in for a few days and removed them. I was hoping to regret taking them out but did not notice a significant downgrade.

I was ready to pack them up and return them when I again installed them for a second chance.

This time, all the harshness and severe brilliance that I had spent so much time and money to get rid of had returned. At the same time there was that sense of presence and emotion, realism. What a trade off I thought. I was impressed and at the same time depressed about the changes in my system. I inquired to Dakiom about a "break in" period and was told none was needed.

I let it play overnite and then next day I was amazed at the overall dynamics and tonality. The harshness seemed to disappear in the night and a 3D "halo" effect took over. I couldn't account for the positive change and was also apprehensive about taking them out again.

Vocals and horns were now much more believable with texture and grit to them. Listening to a Bruce Hornsby cd sent chills down my spine in a few passages, not only were the details pronounced but the overall "there" aspect was mesmerizing. I have since passed the trial period and have not removed the stabilizers.

I wonder sometimes if it is my head wanting the improvement or the "real deal." All I can say is that for the money they are much more than an i.c. upgrade or change. I am looking foward to getting some more for my M&K sub. I have spent much more for far less of an improvement in the past and I think it is great when a "tweak" like the Dakioms come along.
 

Well it has been over my 45 day review period which I agreed to make when I purchased the Dakiom stabilizers. I guess I am maybe more critical than most as I have a formal electrical engineering background and was a componet level electronic board engineering type. I have designed high quality amps and preamps for commercial studio applications and designed recording studios for production and post production. I only write the foregoing because I am very critical about most electronic circuits which claim to do so much for so little money (this usually "snake-oil").

I waited a long time to write this review--to give myself the time it would take to live with and test these "stabilizers". I put my amplifiers (Outlaw Mono-Blocs...I won't even spend the time now to explain how critical I was with those) on my test bench and ran reference tones and then sweeps from my function generator while monitoring with an IFR spectrum analyzer and oscilloscope. I expected noise and/or signal degradation when connecting the Dakiom's...there was nothing...not a change at all which I could visually make out on the reticules.

I then hooked my system back up and played music for weeks. Then I removed the Dakioms for a day. My music was degraded significantly and was no longer enjoyable!!

I put them back on and listened to lots of jazz (lots of Diana Krall, Norah Jones,Sarah Vaughn, Karin Allyson, Stanley Turrentine and the list goes on and lots of classical) and to my delight my listening pleasure was back!!

I could now hear people (Diana Krall) taking breaths and mouths opening to sing, I heard people moving around (shifting weight) on their benches while playing from one end of a piano keyboard to the other. I hear specific instruments and their individual timbre. With the Dakiom's I can pinpoint where each instrument is coming from and how deep they are in the sound stage. I can go on and on about all the now subtle nuances of the musical instruments timbres and the musicians physically handling the instruments (all the sounds which are covered up due to musical phase issues in the music playback).

The bottom line is--I don't know what's in these little well built enclosures, but they sure make a difference in the listening experience. No more listening fatigue!! And I can't imagine these Dakiom's ever coming off my system in the future. Thanks for designing these little guys!
 

Hello fellow audio folks, here is my review of the Dakiom R103 and A103. 

First off lets start with the system, a hy-brid home theater 2-channel rig:
-B&K Ref 20 Pre-pro
-Parasound 2205A amp
-Pioneer Elite PDF 19 CD Player (used as transport)
-Parts Assembledge DAC 1 Modified
-Mapleshade Digital Cable 
-Virtual Mode Dual Mono Attenuator [in pre-amp category]
-Toshiba SD9000 DVD
-JVC HR-S9500U VCR 
-Sony KV-36XBR200 TV
-All IC's are Virtual Mode
-Bmi Whale Supreme PC's
-Bmi Whale Supreme IPLC (power line conditioner)
-Bmi Shark IPLC
-Snell CV's with matching center and rears [in speakers]
-Mableshade Golden Double Helix Plus Speaker Cable
-All gear plugged into a 20 amp isolated circuit

My first impression of the R103/A103 combo was mixed. My system has had many modifications done to it over the years, some internal and external. All of my 2 channel listening is done through the V-Mode DMA. I wouldn't say the sound was bad just different. Voices were much clearer, many words that I previously thought were inaudible due to a singers style, became audible. The placement of instruments became more focused across the sound stage. Let me say that over the years I've spent many dollars on other products, and the Dakiom's offer the most bang for the buck of them all. After listening for a couple of weeks, the R103/A103 combo was removed. This was a huge mistake! After a couple of hours the combo went right back in. Things just sound, well in a word, better.

Home theater is a must for these products. R103's all around, that crappy sound from cable TV became much richer and more natural. The emotion of movies could be much better expressed. The sound became much more involving, which in-turn made the video more apealing.

The R103/A103 combo is one product that all should consider, lo-fi, mid-fi, and the way high end crowd. Give these babies a shot, they will impress you.
 

Jeff C. (Chandler, AZ)

I'm a teacher,therefore somewhat limited in my choices of audio equipment."Bang for the buck" is my middle name. My music system consists of Emeninent Technology LFT 8 speakers,Bryston 4Bst amp,Audio Research LS8mk2 preamp and a modified Jolida JD100 CD player. Cables are Element and RS silver. The first Dakiom went on the amplifier. I noticed a slight increase in sounstage space.When I added the Dakioms to the CD player and the preamp the whole room seemed to open up.Music did indeed seem to be coming from outside my walls.Instruments and musicians were spread much further apart. Both front to back and lateral sound stage improved dramatically.In addition, each instrument seemed to be clearer.I was able to hear distinctive overtones of meta and wood that I could not distinguish before.Soundstaging has always been a big factor for me. I am obviously very pleased with the result.In essence everything is just more real now. I have been down for a while fighting some cancer.The music is sometimes very soothing to the situation. The Dakiom units have made everything more pleasant.
 

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