BOSS Audio Systems PF1800 Phantom Series Car Audio Amplifier - 1800 High Output, 4 Channel, 2/8 Ohm, High/Low Level Inputs, High/Low Pass Crossover, Full Range, Hook Up To Stereo and Subwoofer Shift your music into gear with the Boss Audio Phantom PF1800 4-Channel Class A/B Full Range Amplifier. This powerful 2-Ohm stable amplifier features 1800 Watts Max Power with a MOSFET power supply for better performance to get your vehicle rocking. Customize the sound with Low and High Pass Crossover, Bass Boost and Remote Subwoofer Control. Bridge channels for more power and flexibility. The Phantom Series are full-featured amplifiers that offer eye-catching Multi LED Backlit Illumination and customization for high quality sound and performance. Rock out with the Boss Audio PF1800.