Just took delivery of my Pioneer SX-1280 amp today (which according to the previous owner, has been serviced, recapped and de-oxited) and with the HE-6 plugged into the headphone jack, I have to admit, I'm done with my search for the right amp to power these PITA cans
It has PRAT, dynamics, bass and no hints of brightness so infamous with these cans, period. Anyone who is still searching for the amp need to try these vintage monster amps, they DO work. Not sure about the other TOTL Pioneer SX-1250 but the 1280 do their job well. Oh, and I haven't driven the cans off the speaker taps yet..
Thanks, Skylab for the recommendation :basshead: