I don't think anything will sound better than the Atma-sphere with the Merlins (maybe Joule VZNs), so getting more out of them is not the goal. I would like to have a no fuss SS amp that I can use in the summer, without feeling like I've taken a big step down from the Atma-sphere. Prior to that I thought the CAT JL2 were fanatastic, but they generated even more heat than the M60s. Unfortuanatley I suspect that I will need Class A SS to be satisfied and that gives off a lot of heat as well. Looking back, I should have kept the Aleph Js. The amp Bobby P recommeded was the BEL 1001, but not easy to come by, and anyting but the MKV is getting a bit old on the capacitors.