I've owned M-60 for 2-3 years and I love them. They may well be the last amps I buy. I've heard Snappers only once, and not in my system, but I don't think they are in the same league with M-60's. One caution however, is that the M-60's don't lie. They are not forgiving of bad recordings, and they are not forgiving of bad digital. I don't play much rock. Mostly classical. I got in the mood for the Stones a couple of nights ago, and it was all I could do to get through Beggars Banquet. BTW, I agree with @phantom_av on the upgrades. Also, be prepared to do some experimenting on getting the 6SN7s right. Makes a big difference in my opinion. I would expect the M-60's to be very nice with the Kensingtons.
