I built my kitset TRANSCENDENT GGP back in 2012. It has always been a superb preamp.
But recently I got the itch and applied a bunch of upgrades and modifications. Still the same circuit but with better components and some 'house-keeping' tweaks in terms of implementation.
The GGP now easily outperforms my incredible DJANGO TVC passive preamp that uses the much lauded S&B transformers found in the pricey MUSIC FIRST preamps. Before the upgrades, the DJANGO easily outperformed the stock GGP.
The GGP is also utterly silent - like switched-off silent - through my sensitive (8-ohm) BLUMENSTEIN single-driver speakers, AT FULL VOLUME!
Worth noting too, that I have only spend around $1,000 extra on the GGP and still only use an ALPS BLUE volume pot.
Needless to say, the GGP responds big-time to good house-keeping tweaks.
Mine's a keeper!
Save yourself a heap of money and buy yourself the kitset for $499. (You'll thank me later...)
[Associated Gear: LINN SONDEK LP12 'HOT-ROD / ITTOK / SHELTER 501 MK2 / RAY SAMUELS NIGHTHAWK / FIRST WATT J2 / BLUMENSTEIN ORCA/DUNGENESS]