Just trying to get my head around the best approach to this... I am converting a garage in to home cinema space, and am currently looking to use the Monitor Audio Controlled Performance in-wall speakers, and also some ceiling ones for Atmos. This speaker range all feature fully-sealed back boxes. However, as I am also putting up sound insulated walls, I don't know what's the done thing regards installation. Monitor Audio don't seem to have any install guides on their site, so I'm not even sure what the regular procedure is, but with a sound insulated wall I'm at more of a loss. I am looking at either going with Genie Clips or Resilient Bar with my walls, but regardless, the end result will be largely the same... party wall > 10mm gap > 50mm stud wall with Rockwool > genie clips/resilient bar > acoustic plasterboard > green glue > acoustic plasterboard. Overall this will be a little over 130mm thick from the party wall. The in-wall speakers are all just under 100m mounting depth, so that puts me at a depth that would be well in to the insulation. So what do you do here? Just cut out a section within the insulation for the speaker to sit in, with the cables running from behind? Or would you create some sort of box behind the speaker, so the speaker is sitting in its own self contained unit? I've seen that done before, but as I say, the CP range do have fully-sealed back boxes, so I didn't think that would be necessary? I was also concerned whether essentially cutting out a significant section of my entire wall may compromise the overall sound insulating effect? Any advice much appreciated.