I have been using a Yamamoto A-09S 300B amp with my Zu Def Mk IIs for the past two years. Absolutely no desire to change. Good luck.
Anyone have Coincident Frankenstein amps?
I'm looking for a nice 300B based amp, and this is at the top of my wish list. Anyone have any input on the performance of these amps? Any other brands you would suggest? Just want to try a 300B based amp to switch back and forth with the 845 based amp I have now. Thanks!