Genius Audio GFX-75X4 Full Range Powered Car Amplifier Multichannel 1800 Watts Max Class AB 2-Ohm Stable with Power Protection System to Boost Speaker and Woofer Performance

TRUE RMS WATTS POWER: Full Range powered amplifier delivers an impressive 13.8V 280W RMS @ 4-ohms - 400 W RMS @ 2-ohms - 420 W RMS @ 4-ohms Frequency response: 20Hz - 20KHz, HIGH & LOW-PASS CROSSOVER: Variable: (HPF) 120Hz - 3kHz Variable: (LPF) 50Hz - 250Hz Subwoofers reproduce sound based on a number of different range frequencies. Set the exact sound specifications for the bass frequency reproduction, MULTICHANNEL: This amplifier has up to four (4) channels for you to increase sound quality and clarity for your speakers or subwoofers, CLASS AB: Our technology makes this amplifier extremely efficient by increasing sound quality and power output while reducing distortion, BASS BOOST allows you to adjust the low bass within the boost range to just the way you like it