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C-MARC™ RCA InterconnectsC-MARC™ XLR InterconnectsC-MARC™ Speaker CableC-MARC™ Prime Power CableC-MARC™ Classic Power CableC-MARC™ Bulk Wire and CableC-MARC™ Digital CableFirewall ModuleEcho's EndBindbreakerBlackbodyPower 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) All Because of the sheer number of reviews, you can sort them above to quickly find LessLoss products of interest.
Firewall ModuleDate Added: 11/25/2016 by JEFF
Digital Audiophile "Match of the Day” : LessLoss USB Firewall Key vs. IFi iSilencer 3.0
Bought the latter as I anyway need two USB cleaning tools, one for my reference audio system, one for my "tweaked for audio" desktop computer used for ripping CDs. I expected the two items to sound different, but I was not prepared for a match lasting only a few minutes in a comparative listening session... The LessLoss USB Firewall Key won by an awe inspiring total knock-out at first round! IFi iSilencer 3.0 is a good product, cheap and honest, cleaning a little bit your USB audio highway, while the LessLoss USB Firewall Key is something else completely, light years ahead in sound quality reached when using it, as if you suddenly leave "digital sound" for something almost real and more natural.... If one product is like a nicely remastered CD, then the other one leaves you feeling the master tape is running in your listening room! Retail prices are quite different, yes, but listening pleasure is, too, trust me. Anyone using a high quality DAC over $1000 without the LessLoss USB Firewall key is DEFINITELY NOT hearing it at even close to 80% of its abilities... You have now been warned. So do yourself a favor: order from Louis your USB Firewall Key now :)    Firewall ModuleDate Added: 09/27/2016 by Jeff
Dear fellow music lovers,
I hope Louis will allow me to add something important to my previous review. Last Sunday, I took advantage of being alone at home to have a nice listening session, and something very interesting happened. Remember, I dislike long reviews that don't get straight to the point :) ; so here it goes: My LAVARDIN IT amplifier was already warmed up, as my Echo's End DAC and AUDIOCOM/OPPO Signature player also were at the front end. I won't bother you with cables, having dozens available for listening/review purposes. Got my USB "music magic key" where I had ripped with the USB Firewall Key some superb jazz files from a Japan import cd, and pressed PLAY on the remote.... My face went pale... I immediately sensed something was REALLY wrong, the system sounded flat, somehow sterile, underpowered and washed out. I stood up, thinking "Oh my... some item in my system has likely developed a fault, repairman soon to be called... To the fact: I had simply forgotten to put back the USB Firewall Key on the Oppo player, before my music key! Need I say more? I don't think so. This item is a Must Buy. Firewall ModuleDate Added: 09/25/2016 by Jeff
The LESSLOSS USB Firewall Key is an excellent tweak for your digital system.
I ripped several CDs onto a top class USB key, with and without it, then listened to the files, rather than listening to the CD with or without it. Fact is the sound gets way better with it, and the ripped files can prove to anyone not owning an USB Firewall Key that it works, and how well! I'm not into poetic like or long reviews, but I noticed that a haze is gone, and more air is noticed to let music flow. Things get more natural, easy to enjoy. Would rate it as a pro quality tool that can change your system like you had a new, better digital files reader/streamer, and it will improve even the best one you could find! I have not tried the Audioquest or iFi USB noise filters, so if anyone has compared them to the LESSLOSS unit, I would be happy to read more. No fears, I am sure the latter is the leader, results wise.... :) Firewall Module; DFPC Series; Echo's EndDate Added: 09/13/2016 by Arthur Ross, Orlando Evans, Bob Grossman, Ken Sternberg, Bill Melillo
We visited several audiophiles in the Philadelphia and New England area. Here they are expressing their impressions using LessLoss products.
 https://vimeo.com/183414902 Firewall ModuleDate Added: 09/12/2016 by Tony_Oz
Echo's End DAC Update & 5X Firewall Module.
The DAC is truly burned-in and has since been further enhanced with the addition of the 5X Firewall module to the integrated amp and a standard Firewall Module to the CD player used as a transport. All components are powered by LessLoss Signature power cables and the IC used is the Homage to Time. Since my last review, the sound volume output appears to have returned to original levels. The addition of the 5X Firewall module has brought about an unexpectedly large boost in performance - much greater than using just the standard module - separation of instruments and voices is not only startling but the background is really dark. Music sounds fluid and natural while voices have slightly more clarity. Bass is more 'musical' and the high frequencies are relaxed and well-defined. The high registers of the piano sound like crystal - a great example is Liszt's "La Campanella" (Yundi Li _ A portrait). The virtual absence of listening fatigue is greatly appreciated. Some audiophile friends have been similarly impressed when these components were tested on one of their systems. I have also had the experience of using the LessLoss USB firewall module which has lifted sound from USB sources to a new level. I have found that upgrading a decent system with super components from LessLoss like power and IC cables, the DAC and firewall modules have brought about greater sonic improvement than rushing out to buy the latest models of system equipment every year or so. Thank you Louis for producing products that live up to their claims of excellence. As they say, the proof is in the pudding. Firewall ModuleDate Added: 09/10/2016 by Janke
Last winter Louis built me a distributor with 8 Firewall Modules, 4 wired in parallel to one outlet used for another distributor and 4 wired in series to the other 7 outlets. It is the black one pictured in his blog.
After the usual tedious 250 hours of burn-in my system started to shine like never before. Everything became clearer and smoother. Dynamics increased and the soundstage widened and got deeper. Even my power hungry Pioneer Kuro plasma TV became more luminous and colorful. Lovely to watch. So, when Louis launched the single modules in the wooden box, I ordered another 8 and inserted them before my most important components - DAC, preamp and monoamps, two on each. This time the improvement was threefold and I felt I was in audio heaven - until he launched the 5xFW Modules. Now I new even heaven could be bettered after my experience with the single units, and bought 4 of them to get a system containing 36 single Firewall Modules. Today I removed them from their burn-in position before the 8xFW distributor and inserted them into the crucial components. WOW! What a Giant Leap kind of improvement. Bigger, larger better. Incredible soundstage with precisely pinpointed instruments. Vivid but smooth highs, clear and transparent midrange and a deep, powerfull bass. Absolutely wonderful and the best sound I have ever heard, not only in my own system, but anywhere including shows, demos and in the systems of my audiophile friends. What can I say except agree to the concept of "A truely triumph". I´m as close you could come to being awestruck by these Firewall modules. Thanks Louis, all your promises came true! My system: -Auralic Aries LE on Paul Hynes SR7EHD LPS with Intona and W4S RUR connected by Curious Cable Regen Link. -Metrum Pavane NOS DAC -PS Audio BHK Signature preamp with Mullard 12V NOS tubes from 1958 -McIntosh MC601 monoamps -Magico S3 speakers -2 x JL Audio Fathom f112 subwoofers -Cabling by LessLoss and Synergistic Research -Stillpoints Ultra SS Firewall ModuleDate Added: 08/03/2016 by Joseph L G, Los Angeles
Tonight I spent several hours evaluating the 36-module Firewall power distributor that LessLoss recently custom built for me. These are my first impressions, recognizing that the distributor is not fully broken in:
With the distributor in my system the sound is more balanced and refined from top to bottom with much less sibilance at the top end. I heard this improvement most with soprano and tenor voices, piano strings, cymbals and brass instruments. The midrange sounds more full bodied. When I temporarily removed the distributor, instruments and voices sounded thinner with noticeably less "meat on the bones." The acoustic ambience is more believable. Instruments and voices sound like they are in a real concert hall rather than an artificial sounding, overly-reverberate field. Instruments and voices sound more present and involving. Instruments and voices do not seem as razor-sharp focused, but their positions and bounds are well-defined and more natural, as in a real live environment. In my system the sound stage is large with excellent separation between instruments -- about the same with or without the distributor. With the distributor, on some very familiar CD tracks for the first time I noticed the subtle sound of rustling sheet music while the choir was singing; the deep, throaty cough of a man in the audience; a squeaky hinge on a distant door in the ambient background; and the fluttering rumble of an organ pedal bass note that I for a moment mistook as a helicopter hovering over my house -- not that these could not have been heard before, but the enhanced detail brought them to my attention. The distributor enables my system to better resolve complex orchestral passages and deliver them clearly and coherently in music that without the distributor sounds congested and distorted. It is uncanny how this distributor can make such a difference. Going back and forth between the Firewall distributor and no Firewall distributor in my system, I can honestly enjoy the sound either way, but I decidedly prefer the sound with the distributor. The sound is not quite as airy, edgy, big and expansive, but to my ears it is more natural, refined, engaging and non-fatiguing. With break in of the distributor the sound will likely improve even more than I heard tonight, but regardless, what I heard tonight is the best sound I've heard from my system to date and it makes me a happy camper. Joseph L G Firewall ModuleDate Added: 07/22/2016 by Jörg Stanislawski
Firewall USB Key
Some words to the Firewall USB Key. (Not much time has passed since I received it.) At first when you've only seen the images in your Newsletters, it is somehow surprising how tiny it is, and again it is not, as everybody can imagine the size by looking at a usual USB stick. Some time ago I made a copy of a CD with my iMac, the older one that still has an internal CD/DVD drive. The copy was done with my old Philips JackRabbit CD Burner. Yesterday I plugged the Firewall Key into the USB connection at the back of the computer, stuck in my LH Labs USB cable and connected it to the JackRabbit. The copying process was exactly the same, made with the same program at the same speed. I then made listening comparisons between the two copies and also invited my female neighbor who has much better listening capabilities than me. Music title was "William S. Burroughs in Dub" by Dub Spencer & Trance Hill. Well, I didn’t expect much difference, as in reviews reported (for example on the Audioquest item, that seems to be sort of similar to the Firewall Key), it seems these things show only very slight improvements. But again, the superiority of the geniuses at LessLoss shines. From the start the difference to the better was so clearly audible, that leaves you asking how this is possible. It was only the USB connection to the burner. There are much much more details (for example in the parts from the first track that start very silently) than on the copy without Firewall Key. My neighbor said, that these silent parts mumble in the background and you could imagine under water singing of whales (that it isn’t). Concentrated and careful listening shows you that there is something, but you can’t say exactly what it is. The copy with the Firewall Key seem to wipe a thick fog bank away. Everything seems totally clear and really unbelievable better. I will try this with some other types of music and compare it also to the original. Thrilling, and I can only give my highest recommendation… again. Jörg Stanislawski Dortmund/Germany Firewall ModuleDate Added: 07/17/2016
I've been enjoying the USB Firewall Keys, and now with 4 on the JCAT card and 4 on the WSH :-)
It's GREAT!!! I haven't looked back to Digital XLR :-) Firewall ModuleDate Added: 07/17/2016
I've used the USB Firewall Key for over 100 hrs and can report that it has made a significant improvement to the sound with better definition and clarity.
I had 2 audiophile friends over recently to audition the Echo's End and they were both astounded by the difference the single USB Firewall Key made. 
 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.
Excellent transaction with Lessloss on dynamic filtering power cord. Good communications & fast shipping. A+++++
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+++
Bought the Lessloss PC cable about a month ago; the quality and build are excellent. Compares very favorably with more expensive PCs. Highly recommended. Thanks!
A power cable that makes a huge difference; simply an excellent design. First-class sales and service - highest recommendation.
Cable #6 powering my Emm Dac6e which comprises part of my headphone system. Again, more resolution, detail, quietness from my Victor HP1000phones. Best single device in my system ever. Time to purchase more. I'm spreading the word re: this marvel!!
Liudas,your service is INCREDIBLE,no waiting 4-6weeks for cables and the ones I already have are doing more than I hoped A+A+,Thanks again,Don
Lightspeed delivery,very nice cable.I am kind of proud Liudas of such good cables from this part of Europe
Liudas is a honest and dependable seller, always answers my e-mail questions promptly. The LessLoss cable is a work of art, and sounds good too, cable is still burning in. I'm quite happy with my purchase.
Very smooth transaction, lovely cables. Thanks Liudas!
Amazing power cord! It beats my other much more expensive cables hands down - blacker background, natural, more details and dynamics. All my CDs open up and sound more musical. Brought two cables so far and will be buying more for sure. Liudas is a s
Cable #5 powering my Day Sequerra tuner results in being able to receive more stations!!! No more hiss, greater dynamics. Makes it sound like my ADA Tune Suite XM. This cable is the most remarkable product that has come my way in the past 20 + years
Kind and lightspeed fast service. The cable is a steal and outperforms other cables, costing much much more. Increasing every aspect of sound you can imagine. Absolutely outstanding!!! Thanks again Liudas.
Item arrived quickly and well packaged. Excellent communication. A great product from a great seller.
This is cable #4 in my system.Used powering my Ashley Xovermy MRS scares me out of the room!What power below 15Hz.No power cords that I have owned,many15X the $579.asking price have come close 2 this level of performance Looking forward 2 adding more
Cable #3 added to the PS of my Cello Palette. Well, no more static as I rotate the dials for the various frequencies. 1st cable to accomplish this! All power conditioners, including the Accuphase P1200 did not rectify the situation.Unbelievable!
Fast shipping and great sounding cables. Would not hesitate to deal with Liudas again.
This is my 2nd power cord from Lessloss. The first one was used to power my VRE-1, this one for the EMM CDSA SE. Again, a stunning result, w/quieter backgrounds, something that I thought I achieved w/the 1st cable. Next unit, the Xover.Unbelievable!
Excellent service and product, do not hesitate to try these cords. AAA+
Super fast shiping and a fantastic power cord. The very best I have ever used. Thank you Liudas!
You cant get a better seller in audiogon than Louis. For a cheap PC ( compared to many other manufacturers), he is responsive to your mails and even offer suggestion for cable configuration. Buy with confidence. First class seller with 1st class serv
Excellent seller...and truely excellent cable. The Dynamic Filtering Power Cable is just fantastic...musical...liquid...3D. Thanks!
Liudas has SUPERB DELIVERY,excellent communication. Cables are gorgeous.Can't wait till my amps come back,so I can reconnect.Can't say enough,check out all the POSITIVE FEEDBACK,Don Mitchell
The Lessloss offers WIDE dynamics.It's spooky quiet with an airy sound stage. Worth 10 times its list price.I am buying more!
Liudas is superb to deal with,4 day delivery to my door.wonderfully crafted cable. Excellent communication,and he's very patient with my questions,I'll be doing business with Liudas again(oops I already have)Thanks,Don
Very good sounding power cable,fast delivery-recommended.Thanks!
I own a number of well know and expensive Powercords that I use throughout my system. The Lessloss is clearly on par with the best for less. Used on the preamp of a system that was never bass shy, I felt like I had discovered another octave of music
Re: Purchase of Lessloss AC power cable. Immediately apparent something is special, it changes the envelope of the delivery of the music. The tripath solid state AR Amp sounds more flowing and used with my Tube SET, more bass from my 2 way speakers
Very good power cable at reasonable price, fast shipping, easy communication. Highly recommended, both product and seller.
Thanks Liudas. Very fast shippment, the whole transaction took 3 days. Excellent cable, the best I've owned. It's my second purchase from Liudas so I know from experience that it will be even better after burn in. Highly recommended.
Quick shipment and very good AC cord. I'll be back for more.
STELLA SERVICE. Felt like a valued customer. Cables are simply amazing. The sound stage is huge and sibilance free. Amazes me the way instruments and voices soar out of thin air. Thanks Luidas.
Outstanding service, excellent communication, and a fantastic product, one of the best power cables available for the $$$$. thanks again!
Quick delivery this time, My CD player never sounded so good. Thanks Luidas for another great cord to add to my system. A+++
I would like to thank Liudas for his excellent service. He is selling a fabulus product that helped me to solve the problem of high frequency harshness I experienced with my CD player.I will buy more cables to replace my Acrolink and Oyaide Tunami
I have now completed a full system (Digital/Power/Analog) integration using the LessLoss product. These power cables are a work of auditory art. Simply plug them in and be amazed! It's one product any sensible audio enthusiast should not miss out on.
I now have 4 of these in my system and every one of these on each component brought my system up to new levels. Nicely built as well. Highly recommended component!
Liudas is the gold standard in service. His cord in my system amounted to a hugh and positive upgrade. Thank you.
Outstanding service and the cable is as stated. The best I have heard so far over other regarded power cables. Highly recommend!!
Great on-going communications and terrific product.
I still find it hard to believe a power cord could be equal to or even greater than a serious interconnect upgrade, but it is! Thanks Liudas for the great product and perfect customer service.
The perfect seller in Audiogon: exceptional communication, easy transaction and fast and safe shipping. Recommended.
Perfect transaction.Great communication and very fast shipping. A+ Audiogon seller
Superfast shipping, good communication, doesn't get any better than this. Also, the cables are butifully made of high quality components. Thanks Walter.
Excellent transaction. A great power cable and company. Worth the wait.
A great experience overall, Liudas's enthusiasm for his product and the ongoing updates made this a very positive experience. The cord has made a significant difference in my system, most notably a much lower noise floor..
Trustworthy and very knowledgeable seller/designer/manufacturer. Kept in touch with updates and info. while cord was being manufactured and processed. It's all good - and all very high end.
Liudus is a great guy and the power cord is outstanding, I will glady buy from lessloss again, the cord took my system to another level
2nd entry; bought more cables. IMHO, better powercables than these are not available! Lessloss p/c's are MORE than a system upgrade. And 2 day delivery, from Lithuania?!! Amazing product!!!
Very nice sounding cable, beautiful build and a very reasonable price with fast international shipping. A+++
IMAGINE every listening session as your best listening session. Every recording played the best it can play. Your equipment performing always at optimum. Lessloss makes it happen! These cables are the best of the best!!!
In my years of audio and all the cords I tried Lessloss cords, made a difference you can hear for the better and it's not subtle. Good work Liudas! AAAA+
Excellent seller and Audiogoner, great communicator. Power cable is outstanding, excellent... Great soundstage, excellent definition, black background as promissed.
Liudas is great to deal with: excellent communication and service. The cables are very well made and well worth the money. Thanks!
Outstanding transaction and outstanding power cable.
Great transaction well worth the wait, this is by far the best powercord I have used in my system over the past 20 years, some cost as high as $3,000 and this power cord for $500.00 beat them all hands down and is a steal at its current asking price.
Top notch construction, performance to match, and a great transaction. Highly recommended because the cable does what is claimed, lowers noise while improving dynamics. Thanks!
If it was just always so simple !! Excellent, correct and accurate communication. Absolutely no loss at all even before listening to the cables. Highly recommended.
This cable was the BEST purchase that I've ever made!! I’m not affiliated with this product in anyway, but feel sorry for Audiophiles who don’t purchase these cables. Once Audiophiles try this cable, they will wonder how this product can be sold at such a low price. I’m baffled… In an industry full of snake oil, unethical cable retailers, enormous profits and scams - this LessLoss "Filtering Power Cable" is a "breakthrough product" which blows away the ALL competition at ANY price!!! I honestly don’t know how LessLoss can make a profit while using Oyaide connectors, hand braiding and an incredible passive AC filter. LessLoss "Filtering Power Cable" are sold from a manufacturer /owner /designer who is trustworthy, ethical, knowledgeable, and a pleasure to deal with. Take a chance!!!!, PayPal your money to Lithuania - and you'll be rewarded with great Customer Service, and the finest power cord made. Hear for yourself what you are missing!!! Thanks Again!!!
Excellent service and communication. Fast shipping. Thanks, Liudas!
Excellent products! Delivery of the power cords and XLR digital interconnect cable,was received within 10days of shipping. Luidas kept me informed on the status of my order. Very good communication and feedback to my inquiries.
First-rate all the way! The cables are sensational, and the price is a steal. The 1-2 week delivery from Lithuania is well worth the wait. Liudas and Vilmantas at LessLoss are perfectionists pursuing their love for the art of music reproduction.
Before upgrading your gear, please try the Lessloss Blackbody. It works wonders with my equipment and adds a realism, a new quality to the sound that will leave you speechless. Absolutely wonderful piece of gear.
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Cotton-clad true Litz • Whopping 2.3mm2 polarities
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Our finest RCA cable • Polished Wenge barrels
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A hand-braided cotton-clad unique Litz construction
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XLR Digital C-MARC™ Entropic Process
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Our most elaborate cable product • Total 5.472mm2
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Firewall 640x
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C-MARC™ Entropic Process and standard lead versions From $ 654 -
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BlackGround DIY
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446
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BlackGround 6x/10x Power Base 🔥
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2350
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Firewall for Loudspeakers
C-MARC™ Plug-and-Play Speaker signal conditioning like you've never imagined From $ 1656 -
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BlackGround DIY
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