User Reviews
Published LessLoss Reviews Now Number Over 727
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C-MARC™ Classic RCA InterconnectsC-MARC™ XLR InterconnectsC-MARC™ Classic Speaker CableC-MARC™ Stellar Speaker CableC-MARC™ Prime Power CableC-MARC™ Classic Power CableC-MARC™ Stellar Power CableC-MARC™ Bulk Wire and CableC-MARC™ Digital CableFirewall ModuleEcho's EndGiant StepsJam GlovesBlackbodyPower distributorBlackGround DIYBlackGround 6x/10x Power BaseBlackGround 8x/10x Speaker Base
DFPC Original (legacy)DFPC Signature (legacy)DFPC Reference (legacy)DFPC Series (legacy) (all)Digital Cable (legacy)Firewall (legacy)Anchorwave (legacy)Homage to Time (legacy)Tunnelbridge (legacy)Laminar Streamer (legacy)Bindbreaker (legacy)
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DFPC Original (legacy)DFPC Signature (legacy)DFPC Reference (legacy)DFPC Series (legacy) (all)Digital Cable (legacy)Firewall (legacy)Anchorwave (legacy)Homage to Time (legacy)Tunnelbridge (legacy)Laminar Streamer (legacy)Bindbreaker (legacy)
All
Because of the sheer number of reviews, you can sort them above to quickly find LessLoss products of interest.
C-MARC RCA unbalanced signal cable, stereo pair
NEW
Date Added: 10/11/2026 by Patrice, Pully, Switzerland
The 2 pairs of cables arrived safely on Monday, October 5th.
Upon connection, in place of the COAXIAL C-MARC ENTROPIC, immediate improvement!
As usual with LESSLOSS! The more listening and operating time increases, the better the result becomes!
I had already noticed the extraordinary contribution of STELLAR; Power cables; Firewall Speakers; Speaker cables.
But here, I think that STELLAR on small amplitude signals, between preamp and amps, in my case, proves to be even superior in performance.
The most impressive thing about this STELLAR INTERCONNECT is the SILENCE of OPERATION, obviously combined with all the other LESSLOSS accessories that I own.
I extend my sincere thanks and express my complete satisfaction. Thanks to YOU and the entire LESSLOSS team!
With my best regards,
Patrice
CloseRead the reviewProduct details Upon connection, in place of the COAXIAL C-MARC ENTROPIC, immediate improvement!
As usual with LESSLOSS! The more listening and operating time increases, the better the result becomes!
I had already noticed the extraordinary contribution of STELLAR; Power cables; Firewall Speakers; Speaker cables.
But here, I think that STELLAR on small amplitude signals, between preamp and amps, in my case, proves to be even superior in performance.
The most impressive thing about this STELLAR INTERCONNECT is the SILENCE of OPERATION, obviously combined with all the other LESSLOSS accessories that I own.
I extend my sincere thanks and express my complete satisfaction. Thanks to YOU and the entire LESSLOSS team!
With my best regards,
Patrice
C-MARC RCA unbalanced signal cable, stereo pair
NEW
Date Added: 10/09/2026 by Wilco
I had previously upgraded my speaker cables from the "standard" C-Marc banana-plug cables to the Stellar version. I have just done the same with the RCA interconnects. Just as with the speaker cable upgrade, I experienced a significant increase in resolution and dynamics. There is more body, greater vocal clarity, more detail across all instruments, more bass—with better definition—and, above all, better flow. A huge leap forward in musicality. Highly recommended.
CloseRead the reviewProduct details C-MARC Classic Power Cable
NEW
Date Added: 09/10/2026 by Jay
You recently helped me select two B-stock C-MARC Classic power cables for my Grimm MU2 and Musical Fidelity amplifier, and I wanted to follow up and tell you about my experience with them.
I’ve been involved with high-quality audio for many years and have made plenty of changes to my system, but I was genuinely unprepared for the difference these cables made. The improvement was not subtle.
What struck me immediately was how much more lifelike and dynamic the music became. Vocals have an articulation and presence that makes the performers seem much more real. Instrument placement and separation are clearer, the bass is more articulate, and the overall presentation has a wonderful sense of pace and timing.
Perhaps the hardest thing to describe is the tonal quality. Everything simply sounds right—natural, alive and unforced. I found myself listening to recording after recording rather than trying to analyze what the cables were doing.
I installed the Classics on my Grimm MU2 and Musical Fidelity amplifier, and the improvement to the system as a whole has frankly astonished me. I knew I might hear a difference, but I did not expect anything approaching this magnitude.
I just wanted you to know how pleased I am with them and to thank you for your help and advice. These have been one of the most rewarding changes I’ve made to my system.
Best regards,
Jay
CloseRead the reviewProduct details I’ve been involved with high-quality audio for many years and have made plenty of changes to my system, but I was genuinely unprepared for the difference these cables made. The improvement was not subtle.
What struck me immediately was how much more lifelike and dynamic the music became. Vocals have an articulation and presence that makes the performers seem much more real. Instrument placement and separation are clearer, the bass is more articulate, and the overall presentation has a wonderful sense of pace and timing.
Perhaps the hardest thing to describe is the tonal quality. Everything simply sounds right—natural, alive and unforced. I found myself listening to recording after recording rather than trying to analyze what the cables were doing.
I installed the Classics on my Grimm MU2 and Musical Fidelity amplifier, and the improvement to the system as a whole has frankly astonished me. I knew I might hear a difference, but I did not expect anything approaching this magnitude.
I just wanted you to know how pleased I am with them and to thank you for your help and advice. These have been one of the most rewarding changes I’ve made to my system.
Best regards,
Jay
C-MARC bulk wire and cable
NEW
Date Added: 09/09/2026 by Miklós, an autodidact high-end collector from Hungary
Deep Appreciation from Hungary: The transformative power of C-Marc in a 2.0 high-end chain
To Mr. Louis Motek and the Engineering Team of LessLoss
Dear Gentlemen,
I am writing to you from Hungary to express my profound professional appreciation for your brilliant engineering and philosophical work on your noise-reduction technology. As a dedicated practitioner of rigorous, autodidact high-end audio philosophy, I hold a deep respect for component synergy, material science, and the irreplaceable emotional truth of musical reproduction.
In an industry currently dominated by heavily feedback-bound, sterile solid-state designs and high-distortion environments, your C-Marc concept stands as a resounding triumph of phase-correct noise attenuation.
The LessLoss C-Marc coaxial cable (terminated with Aeco 4045G plugs) has become the vital neurological pathway of my dedicated 2.0 cinema system: Sony 65A90J TV, Cambridge Audio CXUHD 4K player, Vincent SV-737 hybrid integrated amplifier, Ricable Supreme MKII HDMI cable, 2x Ricable Dedalus Elite Power cables, Bowers & Wilkins 706 S2 stand-mounted monitors on Dynaudio Stand 6 and IsoAcoustics Gaia III Neo isolation feet, and Triangle Symphonie bi-wire speaker cabling.
I must emphasize that my 2.0 configuration deliberately excludes the use of a subwoofer. Thanks to the absolute phase coherence and temporal preservation provided by your technology, combined with the Gaia III Neo mechanical decoupling, my speakers deliver a bone-dry, physically impactful, and perfectly timed low-end extension that renders any active sub-bass processing entirely obsolete. No destructive shortcut, no phase compromises, no temporal blurring.
While the internal architecture of my Vincent hybrid amplifier is a work of genius, the factory-supplied metal jumpers on the back panel represented a severe, unacceptable bottleneck to this system's material and sonic continuity. My very first action was to trash them. In their place, I have installed a custom-engineered set of preamp jumpers crafted from the exact same monocrystalline structure as my main digital line: LessLoss C-Marc wiring with the ultra-pure Aeco 4045G tellurium-copper RCA plugs.
The result of this "surgical intervention" is nothing short of staggering. By removing that final physical barrier and introducing C-Marc to the critical bridge between the tube preamplifier and the power stage, the delicate micro-dynamics, phase coherence, and rich harmonic textures are now unleashed with absolute, unrestricted freedom. The analytical carbon dome tweeters of my B&W monitors have been completely transformed. All digital edges vanished, leaving only a pure, organic, and bone-dry dynamic that made me speechless. Your skin-effect-free, self-canceling architecture has provided my electronics with the unrestricted highway they truly deserved.
Thank you most sincerely for your dedication to engineering excellence and for creating a technology that allows us to experience true musical and cinematic catharsis.
With my highest respect and warm, friendly regards,
Miklós, an autodidact high-end collector from Hungary
CloseRead the reviewProduct details To Mr. Louis Motek and the Engineering Team of LessLoss
Dear Gentlemen,
I am writing to you from Hungary to express my profound professional appreciation for your brilliant engineering and philosophical work on your noise-reduction technology. As a dedicated practitioner of rigorous, autodidact high-end audio philosophy, I hold a deep respect for component synergy, material science, and the irreplaceable emotional truth of musical reproduction.
In an industry currently dominated by heavily feedback-bound, sterile solid-state designs and high-distortion environments, your C-Marc concept stands as a resounding triumph of phase-correct noise attenuation.
The LessLoss C-Marc coaxial cable (terminated with Aeco 4045G plugs) has become the vital neurological pathway of my dedicated 2.0 cinema system: Sony 65A90J TV, Cambridge Audio CXUHD 4K player, Vincent SV-737 hybrid integrated amplifier, Ricable Supreme MKII HDMI cable, 2x Ricable Dedalus Elite Power cables, Bowers & Wilkins 706 S2 stand-mounted monitors on Dynaudio Stand 6 and IsoAcoustics Gaia III Neo isolation feet, and Triangle Symphonie bi-wire speaker cabling.
I must emphasize that my 2.0 configuration deliberately excludes the use of a subwoofer. Thanks to the absolute phase coherence and temporal preservation provided by your technology, combined with the Gaia III Neo mechanical decoupling, my speakers deliver a bone-dry, physically impactful, and perfectly timed low-end extension that renders any active sub-bass processing entirely obsolete. No destructive shortcut, no phase compromises, no temporal blurring.
While the internal architecture of my Vincent hybrid amplifier is a work of genius, the factory-supplied metal jumpers on the back panel represented a severe, unacceptable bottleneck to this system's material and sonic continuity. My very first action was to trash them. In their place, I have installed a custom-engineered set of preamp jumpers crafted from the exact same monocrystalline structure as my main digital line: LessLoss C-Marc wiring with the ultra-pure Aeco 4045G tellurium-copper RCA plugs.
The result of this "surgical intervention" is nothing short of staggering. By removing that final physical barrier and introducing C-Marc to the critical bridge between the tube preamplifier and the power stage, the delicate micro-dynamics, phase coherence, and rich harmonic textures are now unleashed with absolute, unrestricted freedom. The analytical carbon dome tweeters of my B&W monitors have been completely transformed. All digital edges vanished, leaving only a pure, organic, and bone-dry dynamic that made me speechless. Your skin-effect-free, self-canceling architecture has provided my electronics with the unrestricted highway they truly deserved.
Thank you most sincerely for your dedication to engineering excellence and for creating a technology that allows us to experience true musical and cinematic catharsis.
With my highest respect and warm, friendly regards,
Miklós, an autodidact high-end collector from Hungary
Jam Gloves
NEW
Date Added: 08/26/2026
Let me just say I think this is the best tweak I’ve ever heard!!! I played a new cd I ordered, Michale Franks, and I was blown away by the huge sound stage and as of a week ago things such as the cymbals have this awesome fullness and splash I can’t truly explain what I’m hearing except to say holy s**t man!!! I wasn’t for sure what to expect and I’m still lost for words honestly. I just read the reviews and they’re also confirming what I’ve been hearing so that made me smile. I’ve saved up a little money hoping to order one more and I’ll add that one to the power cord that supplies the power distribution hoping not only to enhance the stereo more but also to see what it can do to the tvs picture so you may see my order soon. Fabulous new product. Congratulations my friend!
CloseRead the reviewProduct details Jam Gloves
Date Added: 07/04/2026 by Michael Ross, USA
I've used LessLoss products for years. Nearly always a noticeable and excellent improvements. As to these Jam Gloves, let me say from the outset, that they do work! It took a bit more listens than some of the other reviewers are seeing (hearing!). But after about 4 sessions I noticed 1) greater clarity, 2) the music sort of coming to you, instead of you going to it. I hope that conveys the sense of better projection. CDs that I thought were good, became excellent! The richness, the sense of "being there" that I have mentioned before for other LessLoss products, is there. The ultimate measure of an audio improvement for me has always been much I listen to my system. When I go to bed later than I should because I can't stop listening, IS HERE AGAIN!!
CloseRead the reviewProduct details C-MARC Stellar Power Cable
Date Added: 06/30/2026 by Dave Paper
I am very happy with your products. They are not cheap, but MUCH cheaper than the outrageous prices of many of the high end stuff. I have an expensive PC that used to be in my main system, but I have it in my 2nd system. It sounds good but is noisier than yours. I didn't notice this until I had your Stellar PCs in my main system. I'll be buying the LessLoss ICs.
It's a pleasure! Your products work as advertised.
CloseRead the reviewProduct details It's a pleasure! Your products work as advertised.
Jam Gloves
Date Added: 06/16/2026 by Patrice Pully Switzerland
Bonjour à Tous,
Depuis le 9 juin 2026, 6 Jam sont branchés sur 6 fiches IEC. J'avais commencé par un Jam sur la fiche IEC de mon distributeur secteur LessLoss.
Sur le moment, RIEN!!
3 heures après, formidable amélioration en termes de netteté, transparence, silence, rapidité de la dynamique, plénitude augmentée des timbres des instruments de musique.....
Le lendemain, j'ai branché un second Jam sur mon deuxième distributeur qui est branché sur le LessLoss, là aussi, grande amélioration conforme, comme lors du branchement du premier Jam.
J'ai finalement branché les 4 autres Jam sur le préampli, et mes 3 autres amplis.
REVELATION ABSOLUE, et je pèse mes mots!! Chaque jour qui passe apporte son lot de bonnes surprise!! Même la radio en DAB+ devient excellente!
J'ai décidé de racheter 2 Jam de plus, un pour mon lecteur CD/SACD, et l'autre sur mon Ground Box secteur LessLoss
Les Magiciens de LessLoss ont à nouveau fait très très fort.
Tous mes remerciements respectueux remplis de Musique.
[English translation below]
Hello everyone,
Since June 9, 2026, I have had 6 Jam Gloves plugged onto 6 IEC plugs. I started with one Jam Glove slipped onto the IEC plug of my LessLoss power distributor.
At first — nothing!!
Three hours later, there was a tremendous improvement in terms of clarity, transparency, silence, dynamic speed, and a richer, fuller timbre of musical instruments...
The next day, I placed a second Jam onto my second distributor (which is connected to the first LessLoss distribution unit); once again, there was a significant improvement, just like with the first Jam Glove.
Finally, I placed the remaining 4 Jam Gloves onto my preamplifier and my 3 other amplifiers.
An ABSOLUTE REVELATION — and I mean that literally!! Each passing day brings new, pleasant surprises!! Even DAB+ radio sounds excellent!
I’ve decided to buy 2 more Jam Gloves: one for my CD/SACD player and another for my LessLoss mains Power Base.
The magicians at LessLoss have truly outdone themselves once again.
My respectful thanks, filled with music.
CloseRead the reviewProduct details Depuis le 9 juin 2026, 6 Jam sont branchés sur 6 fiches IEC. J'avais commencé par un Jam sur la fiche IEC de mon distributeur secteur LessLoss.
Sur le moment, RIEN!!
3 heures après, formidable amélioration en termes de netteté, transparence, silence, rapidité de la dynamique, plénitude augmentée des timbres des instruments de musique.....
Le lendemain, j'ai branché un second Jam sur mon deuxième distributeur qui est branché sur le LessLoss, là aussi, grande amélioration conforme, comme lors du branchement du premier Jam.
J'ai finalement branché les 4 autres Jam sur le préampli, et mes 3 autres amplis.
REVELATION ABSOLUE, et je pèse mes mots!! Chaque jour qui passe apporte son lot de bonnes surprise!! Même la radio en DAB+ devient excellente!
J'ai décidé de racheter 2 Jam de plus, un pour mon lecteur CD/SACD, et l'autre sur mon Ground Box secteur LessLoss
Les Magiciens de LessLoss ont à nouveau fait très très fort.
Tous mes remerciements respectueux remplis de Musique.
[English translation below]
Hello everyone,
Since June 9, 2026, I have had 6 Jam Gloves plugged onto 6 IEC plugs. I started with one Jam Glove slipped onto the IEC plug of my LessLoss power distributor.
At first — nothing!!
Three hours later, there was a tremendous improvement in terms of clarity, transparency, silence, dynamic speed, and a richer, fuller timbre of musical instruments...
The next day, I placed a second Jam onto my second distributor (which is connected to the first LessLoss distribution unit); once again, there was a significant improvement, just like with the first Jam Glove.
Finally, I placed the remaining 4 Jam Gloves onto my preamplifier and my 3 other amplifiers.
An ABSOLUTE REVELATION — and I mean that literally!! Each passing day brings new, pleasant surprises!! Even DAB+ radio sounds excellent!
I’ve decided to buy 2 more Jam Gloves: one for my CD/SACD player and another for my LessLoss mains Power Base.
The magicians at LessLoss have truly outdone themselves once again.
My respectful thanks, filled with music.
Jam Gloves
Date Added: 06/12/2026 by Jacob Zigelboim and Itai Steinberg
It's honestly one of the best improvements I've ever heard in some sound accessories.
CloseRead the reviewProduct details Jam Gloves
Date Added: 06/01/2026 by Jens A.
Jam Gloves (JG) initial impressions
I took a leap of confidence and ordered 10 JGs when the Early Bird offer came out, and I started implementing them last week.
Before I move on, I need to say that having tried all kinds of strange accessories that claim to improve sound quality over the last 50 years, I am hugely sceptical about that sort of stuff - and I have discarded loads of it! None of the LessLoss products ever got discarded, though 😉
However, when I picked up the first JG in my hand, my first impression was that it looked like a miniature alien spaceship. Were there perhaps tiny aliens in there doing things that we mere humans could never dream of understanding?
Jest aside, even though the JGs might look like some coming out of Star Trek or Star Wars, I am confident that Louis Motek and his team base the products coming out of the LessLoss invention factory on sound (pun intended) science.
Even so, I was still on high sceptical alert when I added the first JG to the IEC plug on the Stellar cable going into my LessLoss Distributor, because how could a lightweight piece of plastic with a rubber band on it be able to improve the already exquisite high-resolution sound of my audio system?
Before adding the first JG to my system I had run through a number tracks that I know really well, and after adding the first JG, I started playing one of those tracks. It only took a few moments to hear that something had happened ...
A few more moments further on it became clear that the separation between performers (singers, instruments) on the track had improved, and that each performer sort of stood out more, making it easier to hear what all performers were doing. Low-level details also became easier to hear.
At this point, my scepticism was evaporating rapidly, and more tracks were put on that revealed a more spacious soundstage, more bottom end grunt and detail, as well as more naturalness/"being there" feeling.
Right now, I am on 9 JGs, having added JGs to the IEC plugs of all major components (router, switch, streamer, preamp, active speakers, etc.), the latest one being added to the Schuko plug on the Stellar cable going from my wall outlet to the LessLoss Distributor. All JGs, even that single JG on the Schuko plug gave further improvements ...
While I was writing this review, I was listening to an album that I have used for many years to evaluate new gear, and I had to stop writing several times to revel in how much more alive the sound is now - will have to give it another listen soon!
As mentioned above I purchased 10 JGs, so there is still one to go into my system, but not until I have taken it around to few friends to have a little fun 😄
Jens A.
CloseRead the reviewProduct details I took a leap of confidence and ordered 10 JGs when the Early Bird offer came out, and I started implementing them last week.
Before I move on, I need to say that having tried all kinds of strange accessories that claim to improve sound quality over the last 50 years, I am hugely sceptical about that sort of stuff - and I have discarded loads of it! None of the LessLoss products ever got discarded, though 😉
However, when I picked up the first JG in my hand, my first impression was that it looked like a miniature alien spaceship. Were there perhaps tiny aliens in there doing things that we mere humans could never dream of understanding?
Jest aside, even though the JGs might look like some coming out of Star Trek or Star Wars, I am confident that Louis Motek and his team base the products coming out of the LessLoss invention factory on sound (pun intended) science.
Even so, I was still on high sceptical alert when I added the first JG to the IEC plug on the Stellar cable going into my LessLoss Distributor, because how could a lightweight piece of plastic with a rubber band on it be able to improve the already exquisite high-resolution sound of my audio system?
Before adding the first JG to my system I had run through a number tracks that I know really well, and after adding the first JG, I started playing one of those tracks. It only took a few moments to hear that something had happened ...
A few more moments further on it became clear that the separation between performers (singers, instruments) on the track had improved, and that each performer sort of stood out more, making it easier to hear what all performers were doing. Low-level details also became easier to hear.
At this point, my scepticism was evaporating rapidly, and more tracks were put on that revealed a more spacious soundstage, more bottom end grunt and detail, as well as more naturalness/"being there" feeling.
Right now, I am on 9 JGs, having added JGs to the IEC plugs of all major components (router, switch, streamer, preamp, active speakers, etc.), the latest one being added to the Schuko plug on the Stellar cable going from my wall outlet to the LessLoss Distributor. All JGs, even that single JG on the Schuko plug gave further improvements ...
While I was writing this review, I was listening to an album that I have used for many years to evaluate new gear, and I had to stop writing several times to revel in how much more alive the sound is now - will have to give it another listen soon!
As mentioned above I purchased 10 JGs, so there is still one to go into my system, but not until I have taken it around to few friends to have a little fun 😄
Jens A.
LessLoss History From the Very Beginnings
LessLoss started its business on Audiogon in late 2007. Within the first couple of month, word about LessLoss spread like wildfire among Audiogon members. Here is the feedback received from our clients during our first year of operation. This is from even before we had our own website.
Louis is one of the best in the business, truly professional and very fast production and delivery. I am very satisfied by your superb service. Many thanks.
Positive by Buyer Sebastian (135) on 07-29-2008
Excellent transaction with Lessloss on dynamic filtering power cord. Good communications & fast shipping. A+++++
Positive by Buyer Sennett (45) on 07-03-08
Bought 3 pc's from Liudas in Jan/08. Outstanding product as advertised. Performance is everything and more than I expected. Kudos to Lessloss cable for a great product. Very highly recommended...A+++
Positive by Buyer Phillykid (33) on 06-19-08