I’d like to hear them as well. Ultimately I decided to pull the trigger on AtmaSphere MA1s as I’ve grown accustomed to the AtmaSphere sound and from what I read they are an outstanding pairing with Sound Labs.
I heard 545s Sunday with Pass Labs 250.8s and they sounded very good. I’m hoping 645s driven by the MA1s will be at least as good in my room.
I have a spare 500WPC Wyred4Sound Class D stereo amp that I will use to break in the Sound Labs. I used it when I sent my M60s back to Ralph for refurb and it sounded really good on my Kefs. Not as good as the AtmaSpheres, but better than I expected from an $800 used amp.