Believe it or not? After I invested quite a bit of money in my system, the only amp got to stay is a pair of McIntosh MC-275. I don't think this is by chance. I have the Avalon Ediolon speakers, though it might not be the best and most expensive speakers around, but it is definitely one of the finest speakers. I have owned two turntables with four arms altogether and back up with not less than seven top of the range cartridges. I have also within the same system, six phono stages;namely ASR Exclusive,TomEvan The Groove, Whest 2.0,47Lab Phonocube,AudioResearch Ref Phono coupled with its Ref Pre 2 MkII, and EAR834P. For digital front, i have the Burmester 969/970 combo. All these, depend on the configuration from time to time for my listening pleasure,will link to my Ultimate CAT pre. I run MC-275 in mono for my Ediolon. Irregardless of whichever configuration I have, MC-275 has always made my system sing. I enjoy the way it renders decay in instrumental notes and voice. It has deep bass with good extension and it is the 3 demensionality in its presentation that makes it so special compared to other amps I owned before. Those amps that come and go include Jadis 500A, AudioResearch VT-100mkII,VTL ichiban,VTL300,VTL Tinytriode,Jadis 300B,Hurricane ASL etc...