On November 29, 2018 at 20:13, Edenlights said...
but my salesman didn't seem excited with sonos amp, inwalls, and maybe a display.
Has he actually listened to AMP with a decent pair of speakers? AMP is a decient piece, not just a warmed over CONNECT:AMP.
Yes, in-walls with a back box are a good idea because the "enclosure" volume can be controlled. If you use SUB, you don't need huge in-walls.
Finally, you will have a certain amount of sound "leakage" into the bedroom behind. If this is your bedroom and you will be watching TV or sleeping, this is not a big deal, otherwise you'll need to jump through some isolation hoops. A reasonably effective approach would be to add a layer of drywall to either side of the current bedroom wall, construct a new wall on the livingroom side that does not touch the original wall, then mount your speakers in the new wall, filling the space between the walls with insulation. (trying not to touch the old wall) Not quite as effective would be to line the stud space containing the in-walls with some sound deadening sheets. (if you have enough space behind the speakers)