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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C-MARC Classic Power Cable
After approximately 8 hours the sound was chaotic and rough. I was hoping this was a matter of aging / burning in. And so it was.
Most important for me now is the beautiful sheen on strings and wind instruments. Another nice improvement is the audibility of the acoustical environment; I hear more of the hall of the performances.
Have not listened to analogue records yet, so no comment on this. Before I had a mixture of Shunyata and Synergistic Research power cables. Not bad, but I was never really satisfied because of a certain amount of hardness.
C-MARC RCA unbalanced signal cable, stereo pair; Firewall Module; Echo's End; Bindbreaker; C-MARC XLR balanced signal cable, stereo pair; C-MARC Classic Loudspeaker Cable, stereo pair; C-MARC Classic Power Cable; C-MARC bulk wire and cable
C-MARC Classic Power Cable; Bindbreaker; C-MARC RCA unbalanced signal cable, stereo pair; C-MARC Classic Loudspeaker Cable, stereo pair
I wanted the best-sounding cables I could afford, and I wanted to stick with one manufacturer. I decided to try LessLoss’s C-Marc cables because they were priced sensibly, a US dealer had strongly recommended them, the online reviews were positive, and they were easy to handle (i.e., highly flexible). The actual technology is beyond me, but the LessLoss website is exhaustive, for those who want or need to know about those things.
I’ve been following a series of steps:
Step one: new signal cables.
This meant two 1-metre C-Marc interconnects (RCA) and a pair of 2-metre C-Marc speaker cables.The improvement I got from the C-Marc’s was what Louis, and the reviews, told me to expect — more relaxed, liquid, with less grain than I’d been hearing before and also less congestion between notes. Changes in a stereo system tend to show up most obviously in the bass, and regarding that, bass went lower and cleaner, which is what I wanted and hoped for. Overall, C-Marcs were an obvious though not huge improvement.
Step two: Two C-Marc power cords.
I plugged these into my monoblocks. What I heard, after break-in, was the same as what I heard from the signal cables, but much more of it. I mean MUCH more. My system had already been doing well at filling in between the speakers. Now, between the speakers, the blackness between the notes was even blacker. That erased almost all cloudiness and made for much improved separation between instruments and between instrumental lines. All the while, the sound stayed relaxed. When I played rock’n’roll, the system kept up with it — drums sounded explosive, bass went deeper and cleaner but also was rich in overtones. Treble was highly detailed but never shrill. Louis had told me to expect this — that good sound starts at the wall, which means that the power cables are the foundation of his product line.
Step three: LessLoss Bindbreakers.
I was impressed enough by the cables that I thought I would try his Bindbreaker isolation devices. The obvious place to start with them was under the Placette RVCs, which still rested on the sorbothane nubs that they had come with. They made an immediate and huge improvement. Basically, they added more of what the cables had added but also expanded the soundstage into the corners of the room behind the speakers. There was correspondingly more space between the notes and each note has more weight to it. Pace, rhythm, and timing all improved. The expansion of the soundstage behind the speakers was the biggest shock so far when using LessLoss products. Even my wife noticed — “Matthew, what did you just do!?!?!?” Around here, that’s the ultimate test.
Step four: More Bindbreakers.
This time I placed them under the amps and server. I got more of what step three got me, which is what I’d hoped. Again, the improvement was obvious, and along the lines of step three had done, but more of it, though really, the jaw-dropping moment had been when I first put them under the Placettes.
Step five: Still more Bindbreakers.
I wondered what they would do under my speakers, so, two more sets of Bindbreakers. This is where things got fraught for a while. With them under the speakers, the soundstage expanded well out toward the listening chair, which was wonderful. BUT ... the sound also grew more congested, as if all the notes had got wrapped in fog. The expanded soundstage was a definite plus, but unless I could eliminate the fog, I couldn’t leave these in the system.
So I tried two things: (1) Review the speaker placement. That helped, even moving them an inch did that, but not enough. Some of the cloudiness dissipated, but not enough, and bass still sounded muffled. So, (2) I adjusted the settings on my Lumin server. Specifically, after a few tries, I ended up turning off all upsampling/resampling, switching everything to Native, and then turned on DSD. Doing that basically solved the problems that the speakers had first encountered with the BB’s (cloudiness), without weakening the strengths (a much expanded soundstage, a very natural, liquid sound, a wonderful combination of weight and air).
Good cables make a difference, and C-Marc’s are emphatically good ones. In the same vein, the Bindbreakers are the best isolation devices I’ve ever had in my system (and previous to this, I’d been using a series of highly regarded ones).
LessLoss builds some amazing gear. And I haven’t even tried their Firewall technology yet. Will be saving for that.
Some general notes:
The cables take a long time to break in, and even once they’re broken in, they react more to the weather and to time-of-day issues than most cables. Live with it ... when they’re at their best, which is almost always, they’re amazing.
I demagnetize my system more than I used to with these cables. Specifically, I do it every four or five days instead of every three weeks. These cables seem to benefit from that.
Once you’ve installed these cables, don’t move them or even touch them. They’re sensitive to that. So are all cables, to a degree, but these more than most.
Good audio starts at the wall. Get a high-end receptacle, if you want to do justice to these cables. Even the very best ones don’t cost that much.
The Bindbreakers require break-in as well – a few days, at least. Strange but true. Perhaps because they are partly made of wood.
When you change your cables, you’re changing the signal the speakers are receiving, so adjust your speaker placement once the C-Marc cables have broken in. It always helps.
C-MARC Classic Power Cable; Firewall Module; C-MARC RCA unbalanced signal cable, stereo pair; C-MARC XLR balanced signal cable, stereo pair; C-MARC Classic Loudspeaker Cable, stereo pair; C-MARC Digital Cable
For those for whom some more detail might be of interest — I currently have three high end systems, each with a different character. Over the years, I have seriously listened to a dozen different brands of cabling and power conditioning at a range of price points commensurate with the level of investment in each overall system. Virtually all sets of cables were above the price of a full C-MARC set -- at times many multiples above. Each set of cables had pros and cons and some stayed in each system and when they did, it would be the full set of cables for coherence. Often moving from one set cables to another in each system usually changed one or two aspects of the presentation of the music. At times, while there was shift, the "net" result was not an improvement in my judgement. Other times, there was a "net" improvement but there remained a weakness in some aspect. The "best" cabling in my judgement lowers the noise floor of the system and "stays out" of the way as much as possible.
In many circumstances, the specific character of a set of cables can be used to compensate for the opposite characteristics the components possess. For example, "bright" cabling can compensate for a "dark" set of components. In my experience, this approach always leaves a sub-optimal net result but may be the most practical approach given the components in question. C-MARC’s character is neutral and I could not discern any particular emphasis the cables brought — they were not brighter or darker; they didn’t accentuate one part of the recording over the others; they did not appear to be faster or slower than other cables etc. Their main effect was to increase the effortlessness and fluidity of the music while improving the coherence and size of the soundstage. Imagine a sort of haze around the band or orchestra members that other cables impart or allow — C-MARC simply eliminated the haze (and occasional harness around some highs). In this sense, I believe C-MARC is likely eliminating various types of noise and interference present within and among the components of the system, letting each play its role in the music delivery with minimal negative artifacts introduced. The net result was a notable increase in musicality and engagement with the music.
For anyone considering C-MARC one step at a time, my suggestion would be to start with either speaker cables or power cords. If it is possible to audition the whole set, even if finances may preclude the purchase of a whole set at once, I would recommend doing so, so that the full potential of the system in question can be heard with comprehensive C-MARC cabling.
For any skeptics reading this, I had no interest in changing the cabling in any of my systems which were all performing well. Konstantin at Atelier 13 in Nashville offered to send me a C-MARC set at his expense just to see what I thought. In the end, the overall effect was so profound I purchased the full set — they were that good. At the C-MARC price level, and at many price levels above, I have not found a better set of cabling that works equally well with tubes and solid-state, high efficiency horns and low efficiency two-way etc. C-MARC lets the inherent quality of whatever you have shine through to its fullest.
Firewall Module; C-MARC Classic Power Cable








Before I get into how the custom Lessloss power distribution unit sounds like, let's get into the specifications:
- Chassis mostly made out of 1 1/2" thick oak-wood
- Two thick slabs of panzerholz plywood(to bolt/glue the inlet/outlets into it)
- 1 IeGo AC-01 BK(Cu-Au) inlet
- 4 Furutech GTX-S NCF(R) outlets
- Polished and grounded(with large internal hookup wire) copper shields around the inlet and outlets
- All Lessloss c-marc triaxial internal wiring
- 12 firewall 64x units
After connecting a super c-marc power cable from the power outlet to the inlet of the distribution unit and four connecting from the power distribution unit to the PC, the XMC-1 processor and the two benchmark AHB2 amplifiers I fired up the equipment to hear how it would sound. When I started to play some music, I immediately heard the purist, most calm, pleasant and mesmerizing sound coming out of a black hole of complete silence as there was absolutely no sibilant in the sound with just empty space between each note. It's as if a very thick and abrasive blanket of static colored steel wool(called RF) has been taken out of the sound which imparted a brittle, dry and closed/collapsed sound that always bites into your ears but is now unbelievably smooth and liquid that flows out of the speakers like water. The sound-stage, at this point, is completely open and holographic, with each sound, not artificially laser-etched into the sound-stage, but effortlessly floating in mid-air separate from other sounds much like in reality. Instead of having a sound that is resolutely and tonally masked, uninteresting/bland and lifeless because of the blanket of steel wool, the sound is extremely vivid, revealing the finest detail, nuances and colors. The sound is much more tangible, defined, rich and full transporting you to the venue where the artist is singing. The attacks have plenty of contrast and inter-lapping of decay from various instruments are easily heard. The resolution and smoothness go hand-in-hand creating a sound that is not smooth but dark, or resolute but cold/analytical, but a sound that is just right. As far as color/timbre/tonality is concerned, each individual sound is vibrantly painted with many various shades of organic colors as if rainbows are bursting forth from my speakers, that especially make acoustic instruments sound very authentic and real. Electric guitars and electronic music aren't quite as tonally rich although they also do have a certain tone to them. I'd also like to make a quick mention of my experience of re-playing Alan Wake after adding this unit to my system. If you've ever played Alan Wake, you know that it's not necessarily a terrifying horror game, although it most certainly does have an eerie, moody and dark atmosphere to it. After adding this unit to my system, playing the game was much more entertaining, vivid, engaging and well, eerie. I really felt the game's dark atmosphere coming alive in the room as I ran across Bright Falls in the night, going from mission to mission. After owning this Legendary product for a few months I can most certainly say that there are very few words that can describe this unit's performance. It is truly in a class of its own.
In conclusion, I would have to say that this unit really reveals the soul of the music. It eliminates other-worldy amounts of RF and leaves you with a high resolution, vivid, organic, beautiful, confident, expressive, holographic and rich sound that has plenty of definition. You are left with living music.
Thank you Louis and Lessloss team for building the crown jewel of my audio system! This unit has taken my system much closer to the peak of mount Everest!









C-MARC Classic Power Cable; Firewall Module
So curious, what the other LessLoss products might be like after getting to know the fantastic Firewall Distributor, I ordered one C-MARC Power Cable. Just to get an idea, what the next year end bonus should be financing.
I received it this morning and without burn-in took a half hour listen. It was surprising, that it would beat my previous power cable like nothing even at this early stage. Again the typical things, that happen with LessLoss: Stronger, deeper, better controlled bass, an amazing extension of the stage space especially behind the front wall for the cable, better and more stable placement, instruments and voices have more body, sound richer, still more detailed. And all seems believable and natural.
I put this cable between wall outlet and the LessLoss distributor.
The upgrade with the distributor was so phenomenal, and still the C-MARC comes with this surprise of further improvement.
I am happy and will replace all other cables with C-MARCs.
I was starting to think about adding subwoofers, but adding the LessLoss Firewall distributor plus the C-MARC power cable really made it senseless. Is it the amp, that does not have to 'over-work' on super high frequencies and instead can focus on the relevant ones … especially the bass?? Amazing what my speakers can produce if you feed it right!
Thanks, Louis!!!
C-MARC Classic Power Cable
I have the (previous version of) the CMarc power cords, alongside a FW64, and CMarc IC and speaker cables, and I love them. In my experience, these power cords (through the Firewall 64) provide high resolution and luminous clarity, with "air" and micro-information that is crucial to music reproduction "realism", but always in the service of the music. They are not artificially tilted towards high frequency nor analytical. I recently had the opportunity to compare them to Cardas Clear Beyond, and whilst also a very good cable, I preferred my Lessloss Cmarc power cords, for their extra luminosity, and sense of "live performance".
C-MARC Classic Power Cable
There was no stopping me now: C-marc to the pre-amp, hmm, not easy to detect any immediate changes here, but burn-in must take its time. However, with my Chinook phono-amp improvement was evident rather quickly, yielding more space, more lifelike presence of instruments and voices. Finally, my DAC was favoured with C-Marc power, resulting in more weight, more presence and articulation in the lower midrange, giving pondus to the presentation.
However, I must admit that an objective assessment of the C-Marc power cables has been difficult to carry out, due to the fact that they were implemented in my setup only one month after I received my pair of brand new PMC IB2 SE speakers. Thus I have been witnessing a double burn-in process. The speakers are developing to every satisfaction, and the sound in my listening room are now very lifelike, revealing yet balanced and musical, with realistic dynamics, extremely nuanced and detailed, unerringly placing instruments and voices in three dimensions.
Power cables are among the components in a hifi setup that will perform for indefinite time. The C-Marc's will sit in my setup forever, or until Louis and LessLoss treat us with an even better cable. Over the last year I have experienced the C-Marc's in three different setups. This is a premium performer regardless of price, and at the present price point, the C-Marc power cable is a «no brainer» for anyone considering cables in this price range.
Lucky me, I will shortly be investing in the C-Marc loudspeaker cables for my PMC's now coming of age.
C-MARC Classic Power Cable; C-MARC XLR balanced signal cable, stereo pair
Acquiring an XLR C-MARC interconnect stereo pair, I'd add this feedback: it is in the same vein with the same qualities, even if the difference is less of a surprise compared to the change of power cables.
Upon initial connection, not burned in, directly out of the box, I'd say these are a little above the Absolute Creations Ul-tim, which are three times more expensive, and also better than Audioprana Signature Ag Cryo (with Ag connectors).
If your system is resolving and balanced, go for LessLoss. If you want to compensate for this or that defect in balance, look elsewhere for cables that add sonically and are much more expensive...
Enjoy!
C-MARC Classic Power Cable
Spectacular improvement!
Noise floor falls away and instruments are absolutely rock solid in the sound stage. Even on tracks I know really well I am hearing new stuff.
The almost total absence of digital harshness means I can listen for as long as I like, as loud as I choose, without any fatigue whatsoever.
If I had paid the same money for a component and got even half the performance uplift I'd be very happy indeed.
As it is I'm utterly amazed and delighted by your product.
Again!
Many thanks and I will undoubtedly be back for more in the future.
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