Russell and Shannon,
First take a look at this page about pre-construction brackets.
Then, if you’re looking for a system with high-power in-wall speakers, look at these under the brand InwallTech and this one for your theater.
As for the rest of the system, consider this, we generally like to see the theater area and whole house music areas on separate receivers. A surround version for the theater and a basic stereo receiver for the whole house stuff. Then, on the whole house audio systems, you’d want a speaker selector matched for the number of speakers you’d expect to have…like this one for higher power possibly: Audioplex MS8 and then volume controls like these: Audioplex VC200D
Hope that gets you started.
High power inwall speakers question from a customer:
I am building a new home and all the wiring for speakers is in the walls and ceilings. I need your help on selecting the speakers and volume controls. As Follows; (1) outdoor ceiling, (10) indoor ceiling, (2) inwall-3 1/2″ studs (6) volume controls. Home theater,(1) center,(2) front-1nwall, (2) back side-inwall, (1) ceiling-overhead. (6.1) I would like to put the mounting brackets in before the sheetrock in about three weeks. I have a budget of $3,000.00 (we like to crank the volume) Thanks Russell