I beIieve I may be the first customer for the Gold Tune Enhanced PSU. I’ll call it the GTE-PSU for this post.
Earlier correspondence with Clay had included his characteristically helpful offer of a no-commitment evaluation of one of his linear PSUs to try with my USB Klein III. In the event it was one of these new model units that Clay sent for my auditioning.
My listening system comprised:
Auralic Aries Femto /LPSU model streaming home-ripped 16 / 44.1 FLACs or equivalent Tidal Premium files.
Curious USB cable and an iFi iUSB Nano 3.0. I intended the latter for use with my iMac with Schiit Modi 3, however both items seem to add even more to my main system. The other USB cable for the iFi iUSB is a Chord Silverline.
Gieseler Klein III USB DAC. Burson Cable+ Pro between Klein and pre-amp.
Naim HiCAP and NAC32.5 pre-amp, in dual 24V configuration with NAC72 upgraded boards.
Gamut D200 power-amp. Sonus Faber Concerto Home speakers on cheap stands
Naim NACA5 speaker cable.
Shunyata Hydra power-conditioner, Venom power-cords. These are usable only on components with IEC mains-sockets, hence used on Naim HiCAP and Gamut power-amp only (and on Naim CDS and separate PSU, not featured in this review.)
The addition of the GTE-PSU in place of the standard PSU immediately brought enhanced soundstage depth and a cleaner / tauter base rendition to what was already a highly satisfying system. (The Klein III had significantly upgraded definition and detail from my original Schiit Modi 3, noting that I am pretty much a noob when it comes to streaming into a main hi-fi, starting this only in August this year.)
After a few days of solid listening I invited over a good friend Paul who plays both folk and especially classical violin and viola regularly in a quartet; he’s also built his own amps and other gear.
Amongst material played was a Tidal 16/44.1 album: Hilary Hahn Plays Bach, Sonatas 1&2 and Partita 1, ( Decca, 2018).
I conducted blind listening tests with Paul of the various configs (with, without GTE-PSU, with/without the iFi iUSB Nano, and again with without the Curious cable). He was astonished at the difference made by the GTE-PSU, as of course am I.
My own reaction from day one was that the Kraftwerk gave another level of clarity, with bass getting 'tighter' and perhaps a deepening of the sound stage. It wasn't so much a veil being removed, rather it gave more of what was there before (if that makes sense).
The iUSB Nano and the Curious cable each gave improvements, however the Kraftwerk GTE-PSU gave the most distinct one. On the Hahn violin playing my friend remarked that it sounded like a violin, whereas without it he missed hearing ringing on the E string (no idea what that means personally!)
On Davy Spillane’s Atlantic Bridge album, we found that the GTE-PSU gave perceptibly clearer detail and on one track we both heard finger snaps that were missed before.
The same enhancement character applied to other material we auditioned.
All I can relate to is the difference between my Klein III with its standard switched mode PSU versus this top-of-the-line GTE-PSU. I am thoroughly satisfied that it provides me with a significant boost to a system that I already found highly involving. Bang for buck it is one of the best upgrades going, with the Burson Cable+ Pro coming in as #2 by the same measure.