Features:

250-watt, 8-ohm, 94dB sensitivity in-wall subwoofer
Dual 8" polymer-coated aluminum cone woofers with rubber surrounds
30Hz-100Hz frequency response
Paintable baffle and grille
Overall: 11 7/16" W x 20 7/16" D
Cut out: 10 1/4" x 19 13/16"
5 year warranty