I had a stacked pair of Quad ESL 57 that were wired in series/parallel to keep the impedence at 16 ohms. The Atma Sphere 30 stereo amp was magic with 57 Quads.
What speakers match well with Atma Sphere?
I'm considering the switch to Atma Sphere M60's tube mono blocks. As much as I love my Pass Lab X600's, as a renter who has had to move three times in two years, they are a pain to move. However, my current speakers are Dynaudio Contour 3.3 (4 ohms) which require a lot of power. My understanding of the Atma Sphere M60's are they perform well with 8 to 16 ohms speakers. So what would be an excellent speaker in the $3000 -$4000 (used) range?