Boss BASS1200 10-Inch Low Profile Amplified Subwoofer with Remote Subwoofer Level Control (Discontinued by Manufacturer) RCA Low Level Input High Level Input 0 to +12dB Variable Bass Boost (@45Hz) Soft Delay Remote Turn-on Thermal, Short and Overload Protection Circuits 10-Inch low-profile amplified subwoofer with max power of 1200 Watts RCA low level input and high level input for universal compatibility Remote Subwoofer level control with phase selector switch 0 to +12dB variable Bass Boost (@45Hz); Subsonic filter (20-50 Hz) and Low pass filter (20-150 Hz) Soft delay remote turn-on and thermal, short and overload protection circuits