User Reviews
Published LessLoss Reviews Now Number Over 698
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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BlackGround voltage-ground interface
Even so, the BlackGround seemed somewhat more mystical than the cables, Firewalls and Bindbreakers I have already deployed in my system, but after an exploratory email correspondence with Louis Motek, I decided to get a few of these new things (perhaps I also felt a bit of an obligation after having godfathered the name for them!).
I received the new devices the other day and wired a couple of them up to work on the AC for my system. Yesterday, I got a chance to try the BlackGrounds out - still not daring to expect much.
That was quite a WOW experience!
These are my initial impressions from my brief listening session yesterday with one BlackGround on Line and another on Neutral on the AC:
- System seemed to play louder! (no settings whatsoever were changed in the system)
- Reverb improved, both room wise and on instruments/voices
- Room description/ambience improved
- Layering and detailing improved
Even though these were not night and day changes, they were easily discernable and heightened the general performance of my system.
Once again, Louis put all my doubts to shame - phenomenal!

BlackGround voltage-ground interface


Added 8 pairs to mains.
What shall I say… this is a psychedelic experience of dramatic magnitude.
From what you wrote about it, I expected a lot, but what it does is not what I expected.
The incredible thing about its effect is that it does exactly what my comdev and the newest gen. resonators we use do, but even stronger, of course.
It’s that energy shift away from the glare and garbage especially in the top end into the organic, colorful, beautiful - the brown, red, orange and golden colors.
That’s what I so love. Plus, it does something on the reach-out and communication level which is magic.
Count me in to get many more of them. This has to go in products.


C-MARC Classic Power Cable; Firewall Module; C-MARC RCA unbalanced signal cable, stereo pair; C-MARC Digital Cable; Power Distributor; BlackGround voltage-ground interface
One of the quirks of this hobby is the vast number of variables involved. That is probably the reason one still cannot just order “The Best Stereo”, pay the bill and live happily ever after. It is still very much an art to not just chose the right components but also be able to make them play together and not against each other. One thing I have learned during my long journey travelling the “Stereo Jungle” is, very few people master this art while vast quantities of animals of prey seem to thrive in sewing confusion dressed up as absolute knowledge, amateurs as well as professionals.
Little wonder that most of us have been through periods of repeatedly swapping out components of our stereo in an everlasting search for the holy grail. Sadly, frustration and confusion often follow the initial burst of joy over a new component and the search starts over again. But there is a solution to this I found out.
My journey took a completely new direction as I, by chance, stumbled upon LessLoss, a company driven by a rare combination of deep insight and experience in both the technical the performing and the recording side of music, look for the credentials on the homepage. Add to that the real time feedback from a worldwide community of satisfied customers. A company that takes pride in always striving for the best, very often breaking new grounds in a spirit where Quality always beats Quantity and getting to the soul of music seems to be the top goal.
Fighting noise seems to be the dominant road for LessLoss, nothing our ears perceive as noise but the cleaning up of all kinds of ultrahigh frequency noise, a lot of which was not present a few decades ago. Noise everywhere in our modern world polluting and thereby hindering our expensive equipment in doing what it would be able to do were the pollution not there.
My present LessLoss chain consists of C-Marc power cables, digital interconnect and speaker cables, all Entropic Processing. Add to that distributor and firewalls, also the oh so important Entropic Processing. As I like to experiment, learn, and pass on knowledge I presently have a somewhat extreme chain, more or less like a choo-choo train, some of the stuff on loan for the experiment and the knowledge of the lenders:
From the Furutech Schuko outlet 2m C-Marc Power Cable (from now on CM PC) hooking up to 2 CM Firewall64x + 1 external CM FW640x + the latest LessLoss distributor with dual 640x firewalls inside, via 1m CM PC Entropic Processing (EP) + another identical distributor + CM PCs Entropic to all equipment. Speaker cable is CM Entropic with Entropic speaker firewalls going into satellites and subs.
The result is a setup that can play at very low volume with an intensity and involvement that ought to be sought for by all audiophiles with family sleeping in neighboring rooms at the time of night when stereo sounds its best and genuine audiophiles are active. There’s a transparency and naturalness to the extremely coherent sound that makes it very easy to slip inside the musical event and easily hear just how the greatest of the greatest master their instruments down to the most subtle vibrato or understated attack.
Of course, when you play louder things get even more involving and easier to grasp but still with a naturalness and musicality that lets you listen for hours and hours in a row without the slightest hint of listener fatigue. Aggressive music sounds aggressive but not tiresome, soft music sounds wonderfully soft but definitely not uninvolving. Attack and explosions in music sound scary if intended and scale, pace, timing, and rhythm is just present in the coolest and most natural way. In fact, it doesn’t take long before you completely forget the stereo and just hear the musicians or singers. Good live recordings almost make you wanna reach out and touch. “Just one more number,” keeps popping up in your mind until you have forgotten time and place often floating away on an inner travel to wonderful places. Did anybody think Zen?
All this LL equipment is not needed to make a genuinely fine sounding setup, but have I yet reached the point where I cannot tell the difference when adding the next piece? Nope, you can never get too many firewalls it seems, but one always seems enough – until you add the next. My guess is, you cannot get too many of the newly introduced BlackGrounds either.
In my mind it’s impossible to exaggerate the value of what LessLoss as a company succeeds in doing as music is the universal language and bearer of immense amounts of cultural goods that our generation is lucky enough to have access to through electronic media. The LessLoss vision potentially opens up virtual access to time travel to a plethora of incredible musical performances in a way other brands can only dream of. Getting as close to the very soul of the performers as possible is what that vision is all about. Only LessLoss offers a completely coherent upgrade road that step by step always takes you in the same direction, closer to the natural unrestricted sound of musical instruments and the skill of the performers. Should you ever need help or guidance, Louis Motek, head of the company, is always open to an often humorous always elevated and skilled discourse over this and that when it comes to his lovechild and music in particular.
So, how much do I want LessLoss to succeed with their mission of (clean) Power to the People? Strangely, it now goes way beyond just making my own stereo sound stellar, as it almost gives me more pleasure to introduce it to others, passing on what truly cleaned up sound can do for their musical experience.
Let me round this up by saying, of all the genuinely many items I have bought into my stereo I have never regretted one single purchase and I would not return one single piece even for a full refund because I was unhappy with it. I have upgraded items but always to the next LessLoss model. I may well do that again cause there’s even a friendly upgrade policy. What can I say but,
Less loss, more pleasure.
Power Distributor; Firewall Module; C-MARC bulk wire and cable


It has been optimised over the years with much dedication, including the use of Firewalls for loudspeakers and Firewalls for power supply. So, I was not expecting such a range of improvements upon implementing this home-made power distributor using one DIY 640x Firewall per power cable (8 Firewalls for 8 power cables). I might even consider building a second distributor to take care of the remaining power cords!
I believe that the use of one Firewall per power cord minimises detrimental electrical interactions between the various pieces of equipment, which clearly translates into less hum and a clearer musical signal.
I finalised my 8 channel power distributor using 8 of your DIY 640x Firewalls, one per channel/output. I use one power transformer (connecting 400V from the 3 phase electrical supply of my flat to its primary, which translates to 230V on its secondary) to feed my entire audio system and achieve galvanic separation.
Grounds proceed via separate connectors, one on each piece of equipment of my system (implemented by me), which, through C-MARC wires, converge onto a single soldering point and then travel through two 640x Firewalls before being connected to earth.
Accordingly, since the grounding network of the system is fully separate from Line and Neutral, I did use Ground and Neutral of the 640x Firewalls in parallel to account for Neutral. Line was used as usual.
I powered all digital related equipment, part of the tube gear, and part of the field coil power supplies with this power distributor. There are still about 8 pieces of equipment which are not powered by this DIY 640x power distributor. Some of the pieces of my system already housed a DIY 640x, internally connected to the primary of the respective power transformers.
Listening to the system after implementation was a great pleasure. The already low hum level of this complex system went even lower, nearly undetectable! Depth and width of the musical stages increased. Unknown low level information appeared, which also translated into increased harmonic richness of instruments and voices and an increased dynamic range.
Acoustics of the recording space became more obvious, which revealed the three dimensional structure of the musical scenery. That means a lot when considering the pleasure it conveys when listening to music!!!
So, great stuff indeed.



Power Distributor; Firewall Module; C-MARC RCA unbalanced signal cable, stereo pair; C-MARC XLR balanced signal cable, stereo pair; C-MARC Classic Power Cable
I am very pleased with it.
I have felt different/ better about playing music since it has been here.
A few weeks ago, I was able to attend small hall rehearsals for some friends about to perform a J.S. Bach and Rachmaninoff recital for piano and violin. My system is now playing in the same universe as this live performance. A perfect audio match? - No! Very relatable - Yes!
I now feel there are no significant component differences that prevent me understanding the performers/composers' main intentions. At age 74, this is the first time I can say this.
I would like to form a thought about how I now seem to apprehend the gestalt of a piece of music ~ but the thought is still too difficult for me to say in a way that is not too ephemeral. But there is a new sense of some kind of completeness in the presentation of a piece of music.
My LessLoss products are - several power cables and interconnects, Firewall for speakers, and the Power Distributor.
The result of several orders.
I live in Australia, and dealing with LessLoss has been pleasant: without difficulty.
C-MARC RCA unbalanced signal cable, stereo pair
In Nov 2021 I received one of the early C-MARC RCA Entropic as an upgrade of the non-entropic, which I kept.
Right after plugging it in and listening to 5 songs, I had to call Louis and congratulate for this wonderful new cable. The main findings:
More black background … how should that be possible??
A lot more natural timbre of all instruments and voices, way richer especially in the low mids
More muscles, e.g. percussion
Even more space and stage
Even more separation of all sound sources
Overall a lot more presence, but smooth. Might be too close for some, but I love it … bathing in music
Sound sources seem to be 3D bodies in themselves, which enhances the presence feeling and palpability
A lot more details, especially better understanding of lyrics
And I love the wooden connectors !!! Always need a flashlight to see the direction of the cable, but it feels and looks so good!
Unfortunately for the review, I had another set of LessLoss Firewall for Loudspeakers coming in close to that time, and I could not tell during the burn-in time, what was from whom. So that was the first delay.
But now the “critical” part. The richer timbres triggered my room to bloat a lot more especially in low mids. I was sure, that this was room acoustics and not the cable. And I finally decided to get some room treatments. So this took more time … a lot more to get the right things. Highly recommended GIK Acoustics, who even came to my house. And I was right about, it’s not the cables fault. This cable made me finally do an important step further, and I am very happy with the overall results.
When I leave the room and come back, I am still shocked how natural and real it sounds.
And then I had to compare the non-entropic again to the new babe. It is all still true, but since the first reflection is managed by some ceiling absorbers, the distortion difference between the two is less, but still there. Do not hesitate, this is the best ever heard RCA cable for me.
Thanks so much to Louis and his team to produce such wonderful components. So happy, that they announced they will keep on working for our HiFi improvements, even, when it gets very dangerous nearby. All the best!!
C-MARC RCA unbalanced signal cable, stereo pair
C-MARC RCA unbalanced signal cable, stereo pair
What is most noticeble are the following: there is more 'weight' and solidity to the sound in general; greater precision, definition and clarity; more weighty bass without any 'boominess'; and smoother top frequencies, especially noticeable with female vocals, strings and orchestral music. Spacing and stage presence were outstanding with opera and choral music.
Conclusion: very impressed - Now in my main system.
C-MARC Digital Cable
I just received 2 Entropic RCA (with BNCR connectors) digital interconnects. My whole system is LessLoss C-Marc Entropic based. I’m a big fan of LessLoss products. They never fail to deliver what was promised. I ordered the renewed RCA Entropic cables (I used to have the ‘normal’ ones). They connect my Aqua La Diva CD transport to my Chords M Scaler. This is then connected to the Lampizator Pacific DAC. I just listened to some CD’s, and it’s again a clear upgrade in texture, natural timbre, weight, air, definition…
I can only thank Louis Motek for his innovative and creative solutions that keep it a gentleman’s league of pricing. I can only hope other music enthusiasts will discover this brand in general.
Thanks
Nicolas
C-MARC Digital Cable
A year and a half ago I upgraded to a “plain” C-Marc RCA digital, happily finding that it, in terms of musicality and naturalness, considerately bettered the Sound Quality of my upgraded and reclocked USB chain from streamer to DAC with the respectable Curious Enhanced cable. The improvement of SQ was mainly in terms of more naturalness, musicality, and ease of flow in the performance - all well-known LessLoss virtues. The C-MARC gave me countless hours of wonderfully involving listening to all kinds of different music styles for a year and a half and to a much cheaper price than the USB spaghetti chain. Meanwhile I had heard hints of an upgrade with the Entropic Process and had been dying to buy one ever since.
Ten days ago, I finally received the upgraded C-Marc Digital RCA Entropic Process cable by my UPS bicycle carrier (this is Copenhagen, after all!).
The new LL RCAs have beautifully crafted wooden plugs on both ends, and, after having put LessLoss Bindbreaker footers under all my equipment with stunning results last summer, I was anticipating some of their virtues to sort of carry over, hopefully removing micro vibrations normally present in metal plugs of even the finest interconnects.
Spoiler alert: I was not disappointed but overwhelmed by the new baby.
Inserting the new cable fresh out of the bag between my dCS Network Bridge and my Steinway&Sons SL-1, everything in the sound landscape changed immediately for the better - and the change was all but small. Of course, everything bettered over burn-in time but more on that later:
• Greater and more well-defined room - behind speakers, in front of speakers, outside speakers, image height increased to a more believable size, and the sense of air around performers turned much more prominent.
• Much improved resolving of micro detail gave richer textures and greater “transport” of emotions from artists to listener.
• Explosive macro detail with greater ease.
• Overall, the speed of transients on both macro- and microlevel increased which improved the difficult task of combining the ability of your setup to play with the lightness of a fawn when demanded, and conversely being just as heavy-handed and lead-filled on music with such demands whether classical, electro or heavy metal. Not a small task in my book, but oh, so nice.
Regarding burn-in, you can find a lot on that subject in some of the technical writings on the LessLoss homepage, but let me sum up my, and three other well versed audiophile friends’ listening experience with this particular cable. As one of them purchased his own copy simultaneously but did not use it for the first week, we had the rare opportunity to repeat the listening session of the burn-in yesterday. This time not in my Steinway&Sons setup, but in a friend’s very different stereo. In my setup there was as stated an immediate big improvement. A slight rawness disappeared mostly after the first twenty minutes and four hours into the listening session it was hard to find any drawbacks. Still, over the next days the sound kept improving, but there was never any really bad sound during break-in as happens so often with non-entropic cables. Even through my friend’s alternative setup it was, to our ears, extremely easy to hear a replica of what had happened in my music room a week earlier, so we left a very happy friend who was feeling somewhat overwhelmed by the magnitude of correction which he had never quite expected upgrading from the regular C-MARC. Two hours into the session he declared that he was now ready to order Entropic speaker cables from LessLoss as well to replace his much more expensive Chord cables.
The sound, or maybe better the non-sound, of the Entropic Process whether applied to speaker cables, firewalls, power cables or as now interconnects is so consistent that, once you know it and have lived with it, you can recognize it immediately by its ease of flow, musicality, dynamics, and natural sound.
It is imperative for me to state that, in no way are the non-entropic products from LL bad or flawed. On the contrary, they are top products who will serve extremely well in well assembled setups of very high class as well as in more modest setups.
The knack is, however, the Entropic Process seems to add so much out of this World to the equation that I’d advice all of you to step into that universe the sooner the better. The real craziness is that it probably doesn’t add very much, but removes stuff
• That just might be why wizard Louis Motek chose the name Less Loss (meaning more gain?).
• At least, that’s what it sounds like to my ears. A true Zen experience.
Kind regards from Copenhagen
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