Thanks.
One of the purposes that the Sonos Amp serves is that it is incredibly discrete. One unit. Easy to hide. This is important because those are the terms set by my wife to put the speakers in our fairly formal living room. So I would prefer single unit discreteness and single unit simplicity.
The Bluesound Powernode is $950. The Sonos Amp is $700 and claims to be 4 ohm stable and 250 watts at 4 ohms (which is unlikely) but still a lot more than the potential 160 watts into 4 ohms of the Powernode.
The Bluesound Node is $500 and I could pair it with a small amp like a PS Audio Sprout or a Peachtree Audio GaN1 (they bundle it with a Node for $1700) or maybe something from Schiit. But that's going to put the total way over the Sonos Amp and over the Powernode as well.
I may start a separate thread about people's experience with the Powernode.
Question- does anyone know if the Node will power-on or wake up an attached amp so that no remote is needed?