I guess I am not entirely unbiased but I have owned 300,600, and 401hr. yes 402au is on order.This amp has some faults. It does run hot and is somewhat lacking in headroom.Hopefully I will be able to get a second one. The bottom line is it makes beautiful music. you could do much worse for a lot more money.xn83ay
I have the 402au in house for a couple of months now. It may be my last amp. Hotrodded with an Accuphase dp57 it is a dream come true.