Have ventured into SET with Jota mono's. 90% Analog. The Vinyl One has a volume pot with 70db gain and no noise. Power cords have really helped. ErnieM's on my integrated subwoofers opened things up.
System edited: New Thor TA-2000 MKII w/phono. All these pieces have a fine synergy. More folks should try higher efficiency speakers, it opens up so many more choices.
System edited: I'm quite excited to add my system to the forum. The DB-100's will be arriving in less than 2 weeks. I am going to play my amp in triode (42 watts). I think that with 100 db high efficiency speakers less wattage will be better than in ultra linear. A dedicated line will be installed very shortly, as well.
My Rogue amp is a push/pull 60 Watt. I've only had it for about 6 weeks. I didn't feel it pushed my 90 db AAD speakers quite well enough so I pursued higher efficiency and to make a long story short, the Von Schweikert's kind of fell into my lap. They are 100 db and were made primarily to jive with SET amps. But they said my Rogue should sound great with them.