I third the recommendation for Merlins. I VSMs with an S-30 for a while with stunning air and extension. I switched to Joule Stargates for a bit mor midrange and bottom end. If I was in the market now, I would seriously consider the M-60 with my VSMs.
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?