It' funny that some folks still have a beef with Adcom equipment based on older models. While I may not classify the GFP-750 as 'class A' I also wouldn't take one magazines opinion as the total truth - magazines have an agenda and they need to be paid by their advertizers to continue reviewing.....take them with that grain of salt. That said, consider this: The Adcom GFP-750 is essentialy the Pass Labs Aleph P with a few changes. The three that I know of is the volume pot (Pass uses stepped resistors), balance control (Pass has none) and that the gain is fixed (not adjustable) on the Adcom. The two units, however, sound very similar. Consider also that the Aleph P costs $2800 dollars more than the Adcom. Is the price difference worth it? Perhaps it is to someone who may be embarassed to own Adcom equipment or to someone who wants the preamp to go with their Aleph 0's. Certainly I would want the Pass unit myself - a status symbol of sorts, but I've got too much of a 'real world' budget for such posturing. I've listened to the Aleph P and GFP-750 in my system and have found them both to be fast and detailed with excellent soundstaging. The both drove my amplifier(s) to levels that I did not know they were capable of. Gone is the dry, forward sound of the old Adcom; it has ben replaced by speed, accuracy and a great sense of dimensionality. If you're looking for the euphony, added warmth or liquidity that some believe makes something 'audiophile quality', then what you want is a tube preamp. To me, maximum fidelity to the original recording (more specificaly, the original electrical signal) is what the GFP-750 provides.