I'm just about to build a false chimney to embed by tv in. I was originally thinking of getting some Q-Acoustics 3000 for surround sound but I would need to make the chimney nearly a foot deep to get the speakers on a shelf/alcove. Recently I've started thinking it would be nice to be a bit shallower so I've been thinking of in-wall speakers so I can do this. How does this setup sound 3 x Monitor Audio CWT160 (Square Grill) for Left/Centre/Right all 3 in a row below TV (https://www.audiovisualonline.co.uk/product/4840/monitor-audio-cwt160-trimless-ceiling-speaker-w-round-grille-single-/ ) 2 x ??? for rear surround 1 x BK P12-300SB Subwoofer (Platinum P12300-SB ) Denon AVR-X2400H (Denon AVR-X2400H Black 7.2 Channel AV Receiver w/ HEOS Music Streaming - Denon - AudioVisual Online - UK Home Cinema and Hifi Specialists ) Any thoughts on the above as a surround system and any recommendations for rear surrounds? I don't know if I should use in-walls for rear surrounds or something like, for example, the Q acoustics 3010.