One big change is going on the way.
Since the Manley has a line input and a volume control, and a great one!, I listened the Manley driving directly the power amps for some weeks.
Well, I decided to sell the pre amp (Audio Research). Actually the AR adds its 'signature' to the music, wich is a nice 'signature', but I definitely prefer the more direct, I'd say 'lively', sound through the output buffer of the Manley.