Surround sound is the most exciting part of home theater - and Axiom's QS4s place you in the center of the action. Using unique multi-directionally firing drivers, the QS4 has woofers on the top and bottom, and tweeters left and right, to provide unprecedented envelopment. This is a great choice for a small to medium rooms , using moderate to high amplification. Binding posts are 5-way gold-plated connectors.