in-ceiling rear speaker placement?

Midnite Mick
Midnite Mick Posts: 1,591
edited November 2009 in Speakers
I've been looking for information regarding placement of rear in-ceiling speakers but can't seem to find any. Are there any formulas regarding how far back and at what angle (relative to the listening position) they should be placed?

In addition, am I losing anything with using in-ceilings for rears as apposed to standard speakers....will they sound too high (9 foot ceiling)? If I am losing something using in-ceilings would there be a case for going 7.1?

Thanks,
Mike
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