THIS DEAL ENDS 11/16. Newegg has the Polk Audio RM 95 5CH Satellite Speaker System for $599.99 – $350 coupon (EMCZZZT29) + free S&H = $249.99! It includes a center channel, left/right and surround speakers. They have a frequency response of 95Hz-24kHz.
Don’t forget the $350 coupon: EMCZZZT29 (expires: 11/16)