Just in the process of wiring for a semi dedicated hc room , the room is 5.35 m long by 3.9m wide . The MLP is about 1.1m from the back wall. I'm going to be using a standard 7.1setup. When funds permit and prices maybe come down for the 11 channel atmos amps I'll upgrade then . I'm planing on installing the cabling for the four inceiling speakers now to use at a later date.ive got a 106inch tab tensioned grand view screen and a JVC HD 350 projector . The speaker set up is Kef IQ5e fronts , IQ6 centre with IQ 10'rears . Powered by a Onkyo 905. Amp . With the dimensions I've got do you think I'll benefit from the 4 ceiling speakers as the rears will be pretty close to the wall ? . The set up is pretty old now but until I upgrade it will have to do. Also the screen and projector are having separate power isolation switches via SFUS so I was planning on having a unswitched socket on the ceiling next to the projector and the same for the screen but hidden in a pelmet. Just think a socket on the ceiling will look ugly so any other ideas would be appreciated. I'll post some pictures soon