If you just double up on the speakers, the delay for one set could be wrong for the seats they serve or both be wrong depending on how the receiver sets them up. I have seen some people use the pre outs from a processor go to two surround receivers, and double up on the speakers they have in the room, and they use each receivers calibration to set the speaker delays correctly for the set of speakers they're connected to.
So, as you only want to have tow extra side surrounds, another receiver would be overkill, so I was wondering if you could use the side surround pre outs from your receiver to go to another amp or amps that has the facility to add it's own delay. That will allow you to run another set of speakers with the correct delays for the seats they're next to.
You could just experiment with another pair of speakers in parallel (if your amp is happy with the lower value impedance) and see if it sounds ok, and then just run another amp from the pre outs to a stereo amp that will feed your extra set of speakers.
Originally Posted by elmalloc
Who says Cameron is "right" and why do we care about him so much - lol!
I trust Gary Lightfoot more than James Cameron.