I have 3 unused En-wall #50504 speaker enclosure systems. If you don't know what these are check out http://dynamat.com/p...l_en_wall.html. I installed three in my personal home theater system and they are incredible. I recommend installing these anytime you are putting in in-wall speakers. They will make a world of difference.
They sell for $95 dollars a piece. Make me a reasonable offer.