I haven't used any Sonos Connect Amps because the paces where I might, other than Play 1,3,5 or PlayBar, have multiple speakers and that wouldn't be enough power, so I used the Connect and a separate amp, mostly multi-channel amps, bridged for each speaker. I haven't been impressed by the Beam or Play Base, at all.

I'm not ready to use this stuff when sound quality matters, yet. I went to a shop that sells Sonus Faber, Audio Research, VPI turntables and other expensive stuff- one of the guys said the Amp is very good for what it does and the amplifier is actually pretty good. I used to think he knew what he was talking about.