Boss Audio Systems CHAOS-FURY is a versatile audio amplifier that can be used in various setups thanks to its wide range of capabilities. It can operate in 2-channel or 4-channel modes and can be bridged to provide increased power output. Additionally, you can customize the sound to your preference with variable low-pass and high-pass filters. The CHAOS-FURY also includes a variable 0 to +18dB Bass Boost and a 15-40 Hz, 12dB/octave subsonic filter to enhance the low-end frequencies. It has both low-level (RCA) and high-level inputs for easy integration with different audio systems.