SOUNDSTORM EV1500M 1500W Monoblock A B MOSFET Car Audio Power Stereo Amplifier bed chair DuoGuard side impact protection offers 2 71258 DuoGuard side impact protection offers 2 layers of protection for 2 zones with a rigid shell Aside from covering your home's technical guts Max power: 1500 watts x 1 channel @ 2 ohms A high pass filter allows only the frequencies above the set frequency to pass through to your full range or component speakers and a low pass filter allows only the frequencies below the set frequency to pass through to your subwoofers so your speakers and subwoofer can perform more efficiently and effectively