High Efficiency Speakers Your top 3 or more

A big and hearty second to Daedalus! I've heard the Ulysses with both SET tube amplification and with SS, and in both cases the pairings were outstanding. I cannot speak for Lou, but I can tell you from my own perspective that the synergy with specific SS amps (Modwright in the case of my own experience) has nothing whatsoever with listening to music loud. Like Coincident, they are very versatile in that they have the potential to pair well with both tube and SS amplification. From what I've heard of them with each one it would be difficult to pick a preference other than in knowing that SS will probably suit an ultimately wider range of musical preferences. I've also heard the smaller Da-RMA's with Modwright SS monoblocks would opine that those speakers pair quite well with SS, in that case, and are like their larger brothers but with a bit less in the extremes (mostly low end).

haha, tastes differ so much. I have the Zu Def. 2s and wouldn't trade them for anything on the basis of sound quality. On the other hand, I have a friend with a dearer system than mine based on big Coincidents which I simply can't stand. The bass alignment is just wrong.

The Defs DEFINITELY can fill a big room on In Rainbows, in their sleep, on a small amp. Like a 45. I don't consider them rocker speakers though, it's weird. While they sound 'good' with any competent gear, they have a 'great' level which takes a fair bit of tweaking to attain.

Any of the 3 Oswalds Mills Horn speakers, KCS Loudspeaker - Sea Exotic/Raal ribbin(i own) & Serious Stereo Altec horn.

The Zu series of speakers are very efficient and easy to drive--plus they give tremdous value.

The Devore line of speakers, while not as efficient as the Zu's are incredibly easy to drive with low-powered tube amps and sound wonderful. The are probably my favorite line of speakers and all of them at their various price levels give incredible sound.

Greg

03-30-10: Mapman
If somebody can show me a SET based system that can deliver Radiohead's "In Rainbows" with the authority and rock solid iron grip in the low end that I hear currently in my system running the (not so) big Bel Canto Class Ds, in a typcial sized listening room, I will be gladly convinced.

Hi Mapman, my Parmenter Fat Boy horn speakers (using TAD professional drivers) with either the Lamm ML2.1 now ML 2.2 or my Parmenter GM-70 SET amplifiers plays all types of music with authority. Shapeshifter, Pitchblack & Salmonella Dub really sound wonderful on this system, not a big Radiohead Fan sorry.