The reality is that you should head over to Monoprice for in-ceiling and in-wall speakers. I recommend the 8" versions of their speakers. This will get you quality audio at a very reasonable price in all of your rooms. The reality is that who you are speaking with will not sell you anything like this, but will sell you speakers that sound darn near identical for at least 50% more money.
I don't want you to think these speakers are built poorly. They are all built quite well in fact. But, they are built cheaply, and most are built extremely similarly. So, when you get a 6.5" B&W speaker and compare it to a 6.5" Polk Audio speaker and then compare it to a 6.5" Monoprice speaker, you would likely be very hard pressed to tell the difference between them in any standard ceiling scenario.
So, you start with as many rooms as you need of speakers...
In‑ceiling speakers allow you to expand your listening environment throughout your entire home, as well as removing the clutter of giant box speakers, giving you back your
www.monoprice.com
Then you add in a 12 zone pre-amp/amplifier system for distributed audio...
Details *Voice Assistant features are only compatible with gateway model WGW-SLX. Control via Alexa is available now; control via Google Home is expected April, 2024; control via Apple's HomeKit is expected May, 2024. Learn more about control via Voice Assistant Platforms. For Lync features, see...
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and just one or two Sonos Port units for audio playback...
Introducing Port: the versatile streaming stereo upgrade from Sonos. Enjoy streaming music, podcasts, audiobooks, and internet radio on your existing stereo over WiFi with just one simple connection. Control your audio with Sonos app or Apple AirPlay 2, and easily expand your system to more rooms.
www.sonos.com
The most expensive part of this setup is all in the amplification. 12-channel amplifiers are expensive. It is possible to get used amplifiers that are of very high quality for a much more reasonable price and there are other options that allow some DiY integration options, but you will typically be dealing with a custom integrator that knows their stuff over a custom store. I will say that for years I worked at a well respected high-end custom chain in our area, and while they carried very nice equipment, some of the best I've ever seen, the problem was that you never had a clue whether or not you were working with someone good, or someone worthless.
So, I would make an effort looking for a local custom integrator whose sole business is custom work, as this may offer you some level of higher-end quality.