which McCormack amp for Paradigm Studio 60s?

I agree, I had a DNA 0.5 before I switched to tubes. It really is a wonderful amp. I personally have never heard the DNA 1.0 or the 125, but I can't image needing much more than a .5 anyway. Besides if you ever want more than a single DNA 0.5 will give you, buy a second one and send them to Steve McCormack and have them converted to monoblocks. Orginally that was my game plan, before becoming addicted to tubes.....

I've owned the McCormack DNA 0.5 Deluxe and used it and a Hsu VTF-2 with several pair of speakers, ProAcs, Thiels and Soliloquys. I can't imagine that the 0.5 wouldn't be more than adequate for the Paradigms and at current used prices the 0.5 is an incredible bargain. I don't think the extra money you'd spend on a DNA 1 or 125 would get you much unless you upgraded beyond the Paradigms.