Fantastic power cord powering my Audio Mirror Tubadour 3 DAC.  Great tone, awesome soundstage with lots of space, detailed but not harsh in any way, and very well balanced. Sweet power cord!

Very analog sounding with its fast, full sound, but no sacrifice to detail. Wonderful! In a sense, this USB cable infuses reality, naturalness and makes music sound "real" to my ears.

Beat out some very awesome contenders: Curious, Audience AU24SE, and Synergistic Research USB cables. Yes, USB cables do make a difference!

This Gustard uses an ES8620 USB interface from ESS which has a completely optimized architecture for high quality digital audio processing.

My streaming source is a 2012 Apple MacMini computer with an MMK kit from Uptone Audio, 16Gb of memory, a Samsung 860 Pro 256Gb SSD drive, and an Akiko USB stick.  I thought I could do better than this when I bought a highly touted Innuos Zen mk3, I was shocked, pleasantly so, when I decided I much prefer the sound of my tweaked up MacMini to the Innuos! The Innuos was too laid back and polite to my ears (and a bit unstable) whereas the MacMini just sounded more real, exciting, and present.  Too each his own!

Excellent, thick as a snake, power cord that is also very flexible. I have put it on my HDPlex linear power supply feeding the 10Mhz clock, and other things, with great results.

Amazing AES/EBU cable! Smooth but detailed, natural and organic, but also fast. Huge 3-dimensional soundstage!  Really happy that I got this cable from Ken of Teo Audio.  It brought my digital setup to a new high, and with Teo's focus on jitter reduction, and with it's liquid conductors, the helped take the digititus out of my digital setup, and made it more enjoyable than ever.  Well done Teo! 

Using it between my DAC and Preamp, in a shotgun configuration (ala Schroeder Method) with a Teo GC in parallel.  Great sonic results!

The combination of the Audience AU24 SX and these Teo Audio ICs gives me a huge, very holographic soundstage that just immerses me!

Paralleled with a pair of Teo Audio Ultra ICs in a shotgun configuration between my DAC and Preamp. Much prefer an Ultra / GC combo vs. just a pair of GCs. Love all that liquid metal!

The combination of the Audience AU24 SX and these Teo Audio ICs gives me a huge, very holographic soundstage that just immerses me!

This is Aric's personal linestage that is a cross between the "Special" and the "Motherlode II" preamps in his line. This is the preamp that led to the highly reviewed MLII, and according to Aric, it has around 90% of the sonic quality / character of the MLII, in once chassis. I was itching to hear a great 6SN7-based preamp in my system again, and I like what I'm hearing so far! Listening to it with a Mullard GZ32 rectifier and various 6F8Gs (with adapters).  

Honestly, I don't know why I ever went away from the 6SN7-based preamp! My favorite tube compliment - Sopha Electric Aqua rectifer with either a pair of National Union round plate 6F8Gs, or the Grant Fidelity 6SN7SE Globes. 

This is the latest copper foil power cord from Mike Powell, Verastarr.  It replaces the Grand Illusion 2 power cord. If its anything like his GI Signature ICs, we will have a winner on our hands!

Running it from my PI Audio power conditioner to my Pass Labs XA25 amp.

Black towers with upgrades: single beryllium tweeter per side, upgraded wiring and crossover components.

Sitting on the very impressive Townshend Seismic Bars. 

A 6' (2m) pair; Love how light and thin this cable is!  

One going to my MacMini Music Server, and one going to my Synology NAS. Both going into a Trend Micro switch. One going to the wall jack from the switch.

Great, quiet, versatile linear power supply powering my MacMini (w/MMK), Ethernet Switch, NAS, and external double oven OXCO 10Mhz clock.

A mini-Corelli of sorts, for folks on a stricter budget, like me.  Supposedly a better value than the Corellli, and about 75% of the performance, is what I've been told.

Also put an Akiko USB stick on a USB port of my MacMini music / Roon server, and it's affect was very positive.  I like and preferred my late 2012 MacMini music / Roon server better than the Innuos Zen mk3 server I trialed, no joke! Returned the Innuos!

Treated all my metal to metal contacts in my system (including all power connections, interconnect connections, fuses, tube pins, etc.), and with less than 4 weeks in, I am very pleased with the added clarity, dynamics, blackness, and detail that my system has gained from the treatment. Controversial product as seen in the threads here, but imo, it’s the real deal. And yes, a lil’ goes a long way! It should be sold at half price for half the quantity! 

No longer in production; This is a very nice cable.  Compared directly with my now sold HFC CT-1 IC, this cable has a more holographic 3D soundstage, but isn't quite as extended on either end as the CT-1, and the midrange may not be quite as clear either. It's a keeper though.

 **SOLD**

These are the PS12 with the 12" woofer, 96db sensitivity, in white!

I did not want to go back to a floorstander, and I really like my Impact Monitors and Omega HO SAMs a whole lot, but these Perfect SET speakers take me to a whole new level of audiophile heaven! I had the pleasure of hearing these at Teajay's (reviewer Terry London) place in Indiana, and I knew I would get these at some point (they just arrived on 5/1/19).  They are the audiophile steal of the century!

** SOLD**

Based on all the positive press, will this solid state Class A amp be able to unseat my fantastic 300b based Coincident SET monoblocks?  The answer is a resounding "YES"!

I have sold my Frankenstein monoblocks! First off, the XA25 does not sound like SET, so don't misunderstand me, this isn't a replacement for SET amps. However it does so much "right" in my system, and is voiced around my sonic preferences (e.g. midrange quality, soundstage dimensionality, instrument tonality, etc,), that I happily replaced my monoblocks (with their costly tubes), and I really don't miss them though I loved them! Add to this the additional headroom I now have, and a tight controlled bass, this amp is a winner on so many levels! Great job Nelson!

Running it with a Synergistic Research Orange fuse.

**SOLD**

Used under my Tekton speakers. Very effective in solidifying my imaging and bass!

Tried it but it didn't sound any better than my Verastarr Nemesis USB cable from my MacMini to the Gustard U16 digital coverter. In fact, I preferred my Nemesis.

**SOLD**

I have tried running sources directly into my amps multiple times over the years, and I have also tried passive preamps / attenuator devices, optical coupled volume controls, and transformer volume controls as well, but I was never totally happy with ANY of these options.  Give me an active tube preamp on any given day.  I want a touch of bloom in vocals and an expansive soundstage, however, I do not want to affect the dynamic transient response, the "live"  feel, nor the dynamics of my "direct to amp" link.

To my pleasant surprise, everything that is described on the Backert Labs website is entirely TRUE, which is why I wanted to try the Rhumba to begin with! Finally, marketing that actually matches product performance. I can highly recommend this preamp! What a great match with the Frankenstein monoblocks!

It takes extremely well to tube rolling, which is where I am at now. I have plenty of good 12au7s to try, so it will take me some time, then onto trying different isolation schemes for it. For today, I am favoring a pair of CBS 5814a tubes or a pair of Amperex 7316. tomorrow, who knows!

Running it with a Synergistic Research Orange Fuse, a pair of Herbie's UltraSonic RX Tube Dampers, three Herbie's ISO Cups with ebony wooden balls, and a pair of Audyn True Copper Max coupling caps (they are massive!) that replaced the meh average AudioCaps.

**SOLD**

I am running a pair of these subwoofers in my system now. Powered by a pair fo Cerious Tech power cables, and connected to my preamp via the MAC Mystic RCA cables.

**SOLD**

Trying this highly reviewed digital cable in the system (Feb, 2020)

**SOLD**

Powering my Ethernet switch.  It's powered by a Cerious Tech Graphene RED power cord.

**SOLD**

Using it from the Gustard U16 DDC to my DAC. This is a fast, tight sounding cable with good musical flow, but it's not lean. Big holographic soundstage with nice layering, with awesome detail, but not over the top, and I can listen to my system with it for hours. This is one of those way underrated, under-appreciated digital cables!

Great cable! The Boomslang beat out the big $$ Shunyata Research Sigma digital cable and the HFC Reveal AES3 digital cable in my system. Yes, I owned both for a time!

**SOLD**

Basically the top half of the excellent Double Impacts without the bass drivers... In my room, I don't feel the need for the bass drivers as I get enough bass from the dual 6.5" drivers on the monitors.

**SOLD**

Now sold (as of 4/2019), but truth be told, I loved these speakers.  Very musical, fast, very efficient monitors (97db) that sound much bigger than they are, throwing a huge holographic soundstage. these have dual 6.5 Alnico drivers (lower driver crossed at 200Hz). Sound great with just am 8wpc SET tube amp in front of them!

I took 70hz and below off the Omegas by using a Harrison FMOD high pass filter (purple), and the sound became incredibly transparent, clean, fast, and most importantly, no distortion from trying to play low bass at higher levels. Plenty loud now in my largish room, where I can easily play > 90db or louder with only 8wpc! 

Sitting on cupped aircraft aluminum disks with carbon steel balls for isolation.

**SOLD**

Circa 2015; just got them (8/2017), and so far so good.  

Surprisingly "powerful" sounding for the low rated 8wpc in my rather large room. Running the excellent Psvane the WE300b with the EML 300b-XLS and Shuguang BT 300b power tubes as back ups. Also running with RCA black plate 6EM7s, and Svetlana Winged C '61 black plate 5U4Gs (Sylvania black plate 5U4GBs as backup). 

Powered by Cerious Tech's "Blue" power cables. Jupiter Copper Foil coupling caps and the reasonably priced AMR fuses complete the awesome package.

**SOLD** 

Excellent, musically satisfying DAC! I sold a Delta Sigma DAC that was 2x more $$ than this one (an ESS9028Pro DAC) based on the Onyx having a much better, more natural sounding piano and voices, with a more natural holographic soundstage, better presence, and less digital edginess. Much prefer the S/PDIF and AES inputs to the USB input! Now using a Gustard U16 USB to Digital converter. Powered by a Voodoo Platinum powercord and using an Audio Magic SHD Ultimate Beeswax fuse.

Last R2R DAC experiment (using a Holo Audio Spring Lev 3 DAC) didn't go very well for me. I found it lackluster, missing energy, etc. In a word, boring.  Recently, I listened to a friend's Shiit Gumby (in his system), and I was impressed enough to try R2R again. So here we are with the Onyx!