I've used a ton of different amps with my P/Es over the last ten years (mine were among the very FIRST manufactured). I've used the Krell KSA 50S, Cary 805s, ARC VT130SE, Bel Canto 300, TAD Hibachi, Prima Luna monos, Pathos Classic, and a few others that don't leap to mind right away.
All have their strengths and work well (not low power SETs, though)in their own way. Overall, I prefer SS with these speakers and the TADs are a very nice compromise between classic SS and tube sound. They're also a very good value. Among tube amps, the ARC works well and the Cary with 211 output tubes (inexplicably, 845s sounded a bit darker despite what I'm told are identical specs). IMHO, most amps with sufficient current will sound very good with the P/Es, as they are pretty forgiving speakers.
Good Luck
Marty