Dave_b - Thanks for the specifics. I am a long-time SS guy who is only now making the transition to tubes, and so I am still learning exactly what to listen for as I audition equipment with tubes. Tubes certainly present the music in a much more musical way than the SS gear I own or have previously owned/heard. In example, I can't get over how much better (to me, anyway) the ML 390S sounds when it is run through the ARC REF3, regardless of whether the HD220 or the ML 334 is used. So far, every upgrade choice I have made has been "just right" for me, and I want to make sure I achieve the same result with changing the power amp. Your comments and those from Chucktone have been very helpful and are appreciated.
No one has commented specifically on the Accuphase P-7000. Does anyone have any guidance/thoughts to share on how that amp might work with the system I have built thus far?