I had an MC-500 and have always been sorry that I sold it. It was a wonderful sounding (and looking) amp. It was very sensitive to the preamp used and I tried a couple of McIntosh preamps (C-38 & C-40) before deciding they were junk (at least for the money). I settled on a Bryston BP-25, which was great. The MC-500 has all the transparency, soundstaging, detail and slam that one could want. I won't be surprised to see me with an MC-602 at some future date. I am currently seduced by MOSFETs, but that probably won't last forever. Can't imagine that the MC-1000's would be anything but wonderful.