Have run the X250.5 with modded Revel F208s and stock Audio Physics Virgos. Used tube preamps - Sachs, Supratek and Airtight. Great power, presence, tonal colors. My first impression of this amp has remain unchanged. That is, "PassLabs sure the hell knows how to do solid state amplification". I have the Parasound A21+ amp. Very nice sound after 50 hours of playing but not to the level of the PassLabs X250.5.
Can you share your older Pass Labs experiences?
I had a Pass unit several years ago, and really liked the old Nakamichi SR-3a I had. What can you share as to a good used Pass integrated or pre/power to consider? Would be using them with a small set of Quad speakers or one of two Magnepan 1.7 or 3.7. Thanks