If I’m not mistaken, driving 6 speakers from a single Amp require all 6 to be from the Sonance Architectural series.

Any Sonos device on your system will communicate with all the others, so if you group two or more Sonos rooms, they’ll play in sync for streaming sources. There are special rules about delays between Sonos Home theater rooms when playing an input from the TV, and grouped rooms, but you didn’t indicate that as a potential. 

Thanks Bruce, that’s helpful.

My intention is to use four speakers off a single amp, evenly spaced around the new room/space. All SONOS speakers, not mixing with another brand.

So I wanted to make sure the amp would effectively function as a normal SONOS product on my network and I could select it effectively as “kitchen” and play music just as I would in any room, and it would play the music out of all four ceiling speakers evenly, just as it would from another SONOS product in a different room.

i want the built in neatness of it all, and while the whole room is being wired and plastered, this seems a good solution and the right time to do it.

assuming the sound quality is up to usual standards.

It should…with one caveat, and I may be misinterpreting your post. All speaker connected to a single Amp will play the same thing. You’re not able to have multiple rooms/zones on a single Amp. You can, of course, put in line volume controls to turn down/off certain speakers (something I’m not terribly conversant in, but others here are), but they will all be playing the single output from the Amp. 

That’s actually fine, I’m looking to have all the speakers play the same thing at the same time. It’s a big kitchen diner, but there are other separate rooms which will be used for other things with other speakers. So as long as the amp connects to the usual SONOS network, that’s what I’m after.

Hi

One more point you may want to consider and that is to have the amp to play in mono and not stereo. The idea is to hear the same output no matter one’s position in the room.

In stereo you may have a horn blasting in the right speaker which may sound off across the room (distant). Stereo is better suited for a traditional two speaker system where the listener is in the center (sweet spot). 

I have heard that alternating left and right speaker place compensates for the positioning if one is set on a stereo setup. I can’t verify that reasoning but you could experiment with speaker placement before sealing everything up.

 Note: The above may be a non-issue in a small space such as a kitchen diner.

That’s a really good tip. I’ll look into that. Mono might be the way forward. Thanks for that!

@Gareth H 

Check out my note at the end of my post as I just added it

It’s worth looking into as it’s quite a large space, so I’ll investigate it!