Is there anyway in a typical 5.1 set up that you can whilst playing music send a duplicate stereo signal to your surround sound speakers, as if they were in B channel speakers that some home cinema receivers have, but without the need of doubling up on speakers. As i understand if you just turn centre off and play in surround mode it will be 4 channel quadrophonic and unless the music is recorded that way may sound pretty bad. Pretty confused and have too many speakers in my living room so if anyone can help? Perhaps it's dependent on the receiver?