Surround Sound speaker placement is different for both music and movie content. For music speakers are placed in a circle around the listener. The center channel has 0º offset, left and right are offset ± 30º, and the left/right surrounds are offset by ±110º. Also all speakers should be, monopole, equidistant to the listener, and all delay (ms) calculations on the surround decoder should be turned off (0ms).

For movie surround, the front speakers should be placed at the edges of the screen, toed in to face the central listening location, and the tweeters should be ear hight. The center speaker should be placed behind the screen (when using projection) or over or under a tv, and as close to ear high as possible. Rear channel speakers should be placed high on side walls, slightly behind the listening position, and should have a di-pole construction.

For more information check out a great DVD on system calibration called Video Essentials. http://www.videoessentials.com/

AJS 16:26, 23 November 2005 (UTC) AJSchmidt[reply]