I'm listening to them right now with a 30.5 pass amp. It sounds okay, but it's a somewhat lean compared to tubes IMHO. I'd say it has juice to play up to moderate/loud fine. Reno hifi iirc will let you try them out if you pay shipping, no affiliation etc. Good luck.
Amp to drive Dynaudio C-1
I'm currently running an ARC VT-100mkIII but it runs out of juice when you are pushing it. I have been told that pass amps sound great and they give a tubelike quality. I would like to stay with tubes but for the power I need it is going to be too pricey. Your suggestions are welcome.