User Reviews

Published LessLoss Reviews Now Number Over 727

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Firewall Module

Date Added: 11/23/2025 by Jeff Wolff
I have 4 of the new 640X Stellars in my system and they provide far and away the greatest increase in sound quality I have ever experienced. The bottom line is far greater musical enjoyment, natural tone and better timing and coordination. I am considering upgrading from a company's $7K DAC to their $23K Reference model. If you told me what the Stellars do is the upgrade I would consider it money very well spent. Obviously the Stellars cost a bit less! This is in comparison to the previous 640X Entropics. Best LessLoss product ever and not by a little and that is saying quite a bit.
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Firewall Module

Date Added: 11/11/2025 
A couple of days ago I installed one of the new Firewall 640x Stellar for power on the linear power supply driving a small LAN to Optical media converter. The media converter sits right after my internet router and drives 30 m optical fiber cable connected to my audio LAN switch.

Tonight, for the first time, I am listening to some music I know well. Although, I know from previous experience that you always bring out amazing products, this new exiting firewall blows my mind! I was just about to upgrade the cables in my subwoofers from hook up wire small to coax, but now I am reluctant to turn of the power as music now flows in a way I have never experienced before🎶🎶🎶🎶. Applauding in your direction 👏. Hopefully it will not be too long before you can produce them in larger quantities.

Oups - another one just slided in on the psu driving my router. More to follow....
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Firewall Module

Date Added: 01/06/2025 by Edward Swiderski
These remarks concern the Lessloss Stellar Firewalls for loudspeakers.

My system is highly resolving, consisting of the following components (partial listing):

- Loudspeakers: PMC Twenty5 26i
- Amplifiers: Luxman 509Z Integrated; Pass XA 25 power amplifier paired with Icon Pro 4 SE balanced passive preamplifier
- DACs: Lamipizator Baltic 4; Holo May ‘KTE’
- CD transport: Jay’s Audio CDT MKIII
- Streamer : Matrix Element S
- Speaker cables : Audience AU24 SX ; JPS Superconductor V
- Interconnects : Audience AU24 XLR & RCA ; JPS Superconductor V
- Digital : Curious cable (blue) USB ; Tubulus I2S & Aes/Ebu
- Power cables: Lessloss; Isotek; Xindak
- Power conditioner: Audioquest Niagra 1200.
- Decoupling devices: Auva 100s and 50s; Symposium Padz and Roller Blocks

Upon inserting the Stellars into the system I was presented with a vividly clear, bright sound quite unlike the original Lessloss firewalls for speakers that I had been using for a few years. Initially, the sound was somewhat harsh accentuating the high frequences somewhat to the detriment of the mids and lows. However, I was correct to assume that some burn-in was needed: after approximately 20 hrs the Stellars appeared to settle, and I began enjoying a clear, transparent, slightly forward sound across the frequency spectrum. As I prefer a more relaxed sound, less forward, I experimented with speaker positioning: I discovered that by moving the speakers forward, not back, and increasing their separation, I achieved a more neutral, balanced and extended soundscape, any residual brightness or glare being ascribable to the materials/recordings. The noise floor is considerably lowered, graininess is virtually absent (depending on the source material), resolution is greater, listening levels can be moderate with no loss of musical fidelity.

In short: Not only are the Stellar firewalls a considerable improvement over the regular speaker speaker firewalls, they are a major addition to the audio excellence of my system.
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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

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