Buy.com - Logitech G51 Gaming Speakers for $89.99 after Rebate, Shipped Free!:
Offer: Dual Matrix Modes create 5.1 surround sound from common 2-channel stereo sources.Gaming Matrix Mode is optimized for gaming effects, while Music Matrix Mode is perfect for enhancing stereo music and other content. The laser-tuned satellites feature Frequency Directed Dual Driver technology which produces a uniform sound-field all around you. The ported, down firing subwoofer rumbles with every explosion. Dynamic bass equalization maximizes bass response while minimizing distortion.