I own the M-2000 now for half a year, and I am still deeply impressed of these wonderful amps: they are the first which are able to control my Dynaudio Confidence 5 speakers totally, with perfect tonal balance, stunning dynamics, huge soundstage, beautiful colors. I had Accuphase P-650 and P-1000, but the M-2000 play in another league. Be happy if you find some.