User Reviews

Published LessLoss Reviews Now Number Over 727

C-MARC Grounding Cable

Date Added: 05/09/2026 by Serhiy
First of all, I would like to Thank You for the great products you have designed, namely the C-MARC cables. They have truly made my system, I couldn't and still can't believe how a cable can make such a HUGE difference on the grounding path, not even the direct signal path!

The C-MARC cables are legit!

I would like to share with you my story.

So here's my story, since I've been working on my electricity for a while now, my latest journey was the Grounding stuff that a lot of you might think is Snake Oil, but read on.
After my Power Conditioner (Vinshine Tai Hang), I got myself a GroundMaster City Ultra (Henceforth: GMCU) as the grounding box, since I've had experience with Puritan's PSM156 box, The PSM156 is a great Power Conditioner as well, I didn't really "upgrade" it to the Tai Hang, but there was some buzz with the Tai Hang and I wanted to hear it for myself and I've had the perfect opportunity to exchange the PSM156 for a dedicated power line. Anyway, the story is not about the Power Conditioners but the Grounding stuff.

I connected at first my GMCU to Tai Hang and immediately heard a drop of noise floor and better dynamics and everything. Then after some more upgrades (Power cables) and some burn in things were looking and sounding good.

Then I decided since GMCU is such a great device to add to it the RouteMaster (Also from Puritan) so I can add some more grounding work to the rest of the chain and connected it to May and Astraeus, while there was even more drop in the noise floor, dynamics suddenly DISAPPEARED. with that I tried to play around and also change my tube, I've had the Ei Yugoslavia in and change it to the Tesla PCC88, that actually brought back a bit of the dynamics but still not enough, later within 4 days I've had it all back things locked in, sound became sweeter, more open and with dynamics. Then the Puritan/Furutech dealer also recommended to change the stock Puritan grounding cables to LessLoss small cable with Furutech/AECO connectors, after some thought and a bit of research I decided to go for it, wasn't too expensive (Even though he warned me it would be expensive), anyway, today I got my cables though there was a mistake in the connectors but 2 cables out of 4 I managed to connect just fine. Connected them and expected a drop of sound quality or at least it starting from the same point I left, what happened was that it actually stayed the same and even became better from first impressions.

A few tracks later, I cried, I cried hard, while listening to Immanis, From content on Youtube, I finally heard great sound, the first wow moment was from the bass coming from Geoff Castellucci - The Sound of Silence track, it was so impactful and authoritative and full bodied... then suddenly a few fairly flat tracks, then another great track "O Death" by The Wellerman that had great dynamics and BODY to voices. Then things started rolling from there non-stop, with all the details, sound was coming out of different places with mostly pinpoint accuracy, I could hear sounds far out in the corners echoing out of the black background, voices were coming from black background going around the stage like completely 3D, that was all from Youtube.
I cried so hard I had to stop the music try to understand.

Music was finally reaching to me emotionally.

TLDR: Immanis is amazing, but even if you have the best DAC or Amp and you don't feel like it's doing it for you, you must work on your Electricity and (Signal) Grounding. It's not snake oil, not even close. It will make you cry.

Best Regards,
Serhiy
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Jam Gloves

Date Added: 05/24/2026 by Joerg Stanislawski
I received the Jam Gloves on Thursday. I started by installing two of them:
one for the CD drive and the other for the DAC. The striking difference was immediately audible. It’s unbelievable – I pick up a Jam Glove and wonder how this thing could possibly have any effect on sound quality. After all, it doesn’t change anything about the connection between the cable and the plug. I installed the next two on the pre-amp and power amp. And again, there was a noticeable improvement. The last two went into the wall sockets where my power strips are plugged in. And, well, what can I say, it got much better again.

LessLoss products, always a win, never a disappointment! Wonderful, thank you.
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Jam Gloves

Date Added: 05/26/2026 by Luigi Fiorani
[Machine translated.]

Ciao Louis,

The Jam Gloves arrived this afternoon here in Australia. After 26 days of waiting. I took 2, because I have 3 of your cables, even not state-of-the-art ones, but they sound good. As per your advice they are connected to 2 of my Power Distributor and the third to my pre valve. I was very doubtful about these 2 pieces of plastic that cost a lot, you have to acknowledge it. I put them on the IEC of the Power Distributor preparing not to hear anything different, as warned, at least for a week.
I have a very vintage system, but very efficient in tri-amplification, with Taylor Made preamps, where in addition to having the 3 C-transformers with oriented grains, the pilot valves are not the usual ECC, but 4 Hitron NOS VT 137 power valves, rectifier 274 replica W.E. of the Pasvane, with 2 ends an AR D 50 with 4 KT88 Linlai for the mid-highs and a Krell KSA 100 S class A, for the bass and the sub that works below 50 hertz in class D 180w.

In the digital sources that is the one I listen to the most, I won't give you the list, it's not necessary, but I tell you that I also have an atomic Master Clock with Rubidio vapors.

Everything is sent to 2 JBL 4343. You'll think: but why is he telling me all this?

To tell you that - I WAS WRONG - and that as soon as I turned the system back on, I didn't have the psychoacoustic feeling of expecting changes, but damn moments I fell out of the chair. As soon as I turned the system on with the Jam Gloves, at the beginning it was the feeling of having put on a reverb unit, then going on with the listening, even now that I'm writing, my dynamics, that I've always had, has increased, and song after song, I find I decrease the volume. But this is nothing, the black background that I have amazingly with the Master Clock, has increased dramatically, everything is literally crazy, I still can't believe what I listen to. A cutting of the tools that leaves you speechless. I don't want to continue because then you'll get too drunk off this.

I can buy 2 more and I would put them on the IEC of the pre and Clock. What do you think? You are great, congratulations to your researchers. Anyway they are worth what you ask for (maybe more). Salutations and congratulations.

Thank you. And I look forward to hearing from you soon. Let me know how I should do, for the next order. (Sorry I have used the translator.)

Luigi
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Jam Gloves

Date Added: 05/27/2026 by Kirk
I just slipped six Jam Gloves over plugs and was shocked at the difference in sound quality. I have no idea how these sleeves work but I assure they make a very audible change for the better.
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Jam Gloves

Date Added: 05/28/2026 by Henk ter Meer
The Giant Steps and Jam Cloves are working excellent:

More space between the instruments and singer(s), better brightness, very nice smooth high tones, much better low tones and very fine musical 3D sound, it makes me very happy!

With kind regards,
Henk
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Giant Steps

Date Added: 05/28/2026 by Henk ter Meer
The Giant Steps and Jam Cloves are working excellent:

More space between the instruments and singer(s), better brightness, very nice smooth high tones, much better low tones and very fine musical 3D sound, it makes me very happy!

With kind regards,
Henk
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Jam Gloves

Date Added: 05/31/2026 by Jacob HiFi Connect
Disclaimer - I am (Jacob from HiFi Connect) the LessLoss distributor in Israel.
All tests done with Headphones and a very expensive setup that includes much filtration.

I just got my stock last week and only today got the chance to test the Gloves...
Who ever knows me - knows that I'm very sceptical and test ALL my new equipment.
I'm very strict.. and if the product is not up to my standards - I always return it to the manufacturer!!

I have many "Filters" and sound improvements that I use in my demo room and sell. I have also my own product with 3 patents that also improves the sound of ANY device.

So... if you read so far, I WAS very sceptical. I thought I need to clear my mind from the daily errands and totally concentrate for the testing task.

My favorite song for testing is "All By Myself" performed by Sheryl Crow. It starts with a piano chord that repeats itself for several bars, then goes to the vocals and the bass line...

With those 10-15 sec you can feel and hear the separation and pronunciation of the instruments and as these are kinda repetitive bars it is very easy to concentrate on the sound and detect the difference when testing equipment.

I was preparing myself for a long session .... cleared 1 hour from my schedule for this.... and was very "disappointed" :) when it took me only 3 minutes to say... "WHAT THE FXXK"!!

Before the Gloves, the piano notes made a kind of resonance in my head (headphones) .. it was like an interference of sorts... it all sounded excellent as it was with all my other filtration.... BUT (!!) after mounting the Gloves - all gone!! I had this clear and relaxed feeling hearing exactly the same notes, exactly the same song bars... but the separation became bigger and as in the product description - all became quiet .... hussshh ... silence.... we are hearing MUSIC here!!

This little gadget blows my mind!!
Its effect is totally visible/audible!!

Yeah... it is not cheap... but WORTH every $ that you spend on this!!

Highly, Highly RECOMMENDED!!!

Jacob.
HiFi Connect
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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.
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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.


Jam Gloves
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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.
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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