Hi there, I am looking to buy a full set of speakers and AV receiver for my slightly larger than average living room, and I would appreciate some opinions. My usage is probably 50% Movies, 40% gaming and 10% music, and I am mostly looking to put together a system that will really bring out the effects of Atmos. My budget is around £6k, and I can be reasonably flexible in terms of speaker placement etc. The options I was thinking of were: Front Left / Right: Monitor Audio Silver 8 or B&W 683 S2 Speakers Centre: Monitor Audio Gold C150 or B&W HTM61 S2 Centre Speaker Surrounds: Monitor Audio Silver 2 or B&W 685 S2 Subwoofer: REL S3 or KEF R400b AV Receiver: YAMAHA RXA3050 or ONKYO TXNR3030 My intention is then to place in-wall speakers for the rears, and 4 in-ceiling speakers for the 'height' speakers. I haven't yet thought about what brand to get for these speakers yet. My questions: 1. Would this system seem feasible, and work well together for my planned usage? Or are there alternatives I should consider? 2. Is there a noticeable difference between 4 ceiling speakers and 2 ceiling speakers for Atmos? If not, then I may buy a 9 channel AV receiver rather than an 11 channel one. 3. Another option that was suggested to me was to use in-wall speakers rather than floorstanders and the centre. Whilst this looks nicer, is there a noticeable compromise in sound quality if I were to choose this route? Many thanks in advance for all your answers / suggestions.