Originally posted by akiddoc:
You'll probably be safe with the 7500, but the NAD definitely caused some distortion at higher volume. The tubes produce a liquid midrange I doubt you could duplicate with a SS amp.
That NAD amp was very generously rated at 100wpc @4ohms. Small wonder it got sloppy trying to drive the Maggies at higher volumes. The 1.6QR needs a LOT of power. I have no problems driving mine with the Outlaw 755 (the predecessor to the 7500). The sound is quite luscious.
I'm a little unclear on the utility of a "tube buffer," but whatever floats your boat. I used to have a pair of VTL Compact 100 mono blocks. And while the sound was good, I think even the best tube amps available have a higher noise floor and lower S/N than our Outlaw amps. Glad it turned out OK for ya.
Best,