Price Match Guarantee Polk Audio Signature Elite ES8 8" 100W Subwoofer Now you can add powerful bass to your hyper-realistic Signature Elite series speaker system with the Signature Elite ES8 8" 100W Subwoofer from Polk Audio. Your music, movies, and games will greatly benefit from the rumble of the ES8's 100W of output from the DSP-optimized Class-D amplifier. Housed inside the narrow Signature Elite series enclosure is an 8" woofer and Power Port for extended bass with minimized distortion. To help ensure that your hitting the sweet spot of your room's acoustic layout with seamlessly blended frequencies, the ES8 comes equipped with Time-Smart Phase Control. Product Highlights: 8" High-Excursion Mineral-Filled Woofer Front-Firing Power Port 100W of Power Output DSP-Optimized Class-D Amplifier Time-Smart Phase Control 4th Order High-Pass Filter LFE & Stereo RCA Inputs Power Saving Mode Narrow Cabinet with a Small Footprint Detachable Grille Our 30-day money back guarantee MFR # 300883-