How much room do they need or how high should the ceiling be and how far away would the ideal seating be if I was to use them to bounce the sound off the ceiling?The old R8 measures better, is a lot cheaper and should already be pretty overkill for atmos
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My current HT room is set up with the KEF R11 front speakers about 15-18 feet away from the seating area. The ceiling is about 9 foot downstairs. I have 2 R3 as rear surround also where I could place them on too.
If I use them downstairs, I won't be able to rear wall mount them due to the curtains covering the wall. I can front wall mount them though.
Upstairs set up would be 14 feet away from the front speakers, 10 foot ceiling, but it opens up into a 20-22 foot high entrance hall to tile floors by the front door. It is an open game room with a balcony overlooking the stairs and entrance hall.