I have recently bought avr-x3600h and I do have 4 magnat supreme 200 speakers, 4 elac debut b5.2 speakers. I need to setup speakers and setup av receiver for music. Before we used to hang speakers of the concrete ceiling, now I don't know what's best. Probably need at least one sub? Can someone help on setting up? The restaurant is basically L shaped with large windows from ceiling to bottom all around and tables by these windows..