are rear surround sound speakers having same sound

Are rear surround sound speakers being feed the same signal? So there is no stereo signal at the back on 7.1 ht set up.

cip5712-27-2005 2:24pm

sugarbrie Details Discussions Posts This discussion Message User 3,854 posts 12-27-2005 at 05:02pm Copy Comment URL Report Comment Edit Delete . Well no..not the "same" signal. I'd guess for a 7.1 system you have at least 8 signals. Center Front - 1 Front - 2 Side - 2 Rear - 2 Sub - 1 If you're missing one pair, is the amp set for 5.1 output? .
drew_eckhardt Details Discussions Posts This discussion Message User 394 posts 12-27-2005 at 04:24pm Copy Comment URL Report Comment Edit Delete While there is no 7.1 source material, most decoders don't send identical signals to the surround back speakers. THX-EX extracts surround back the same way a Dolby Surround decoder handles the center channel and applies a phase shift between the two speakers so that you get a wide image. Lexicon Logic 7 is smarter about what goes there and can send completely different signals to the rear speakers.
eldartford Details Discussions Posts This discussion Message User 4,262 posts 12-27-2005 at 06:21pm Copy Comment URL Report Comment Edit Delete I think that there is only one "rear" (as opposed to "surround") signal. It can be sent to more than one speaker. It is a "derived" signal, probably a mix of the surround signals.