Wow, never would have thought 30 watts would do much for the KEF's. I have a Monarchy SM-70 which I think is also 20-30 watts (also class A). Hooked it up to the KEF's very briefly and did not really push them at all, but didn't sound like enough juice to me. But again it was a very temporary thing, like minutes. Maybe I'll have to try again. You have tried a lot of the amps I was going to try! We must have been reading some of the same "recommendations." I was going to try the McCormack and Rowland. Also thought about trying some bigger Monarchy or other Class A amps, or an Audire Forte. I've pretty much only used an Emotiva UPA-200 on mine. Sounds fine, but I always wonder if I could do better. Just hasn't been in the budget lately.