Just upgraded my Connect:Amp to the new Sonos Amp. The Amp is beautiful and was a breeze to set up, but I immediately noticed pressure and pain in my ears. I reconnected my old Connect:Amp and my ears were fine. I'm not sure what's causing this, though the Amp does seem a bit brighter. Dialing the treble all the way down helped a little, but not much.
My KEF Q150s have aluminum dome tweeters, and perhaps just don't play well with the new Amp. Maybe there's something else going on that I can't obviously detect. For completeness, I also have a KEF sub wired up. Anyone else experiencing something similar?