DS18 GEN-2100.1 2,100 Watts Max 1 Channel Monoblock Amplifier with Bass Remote This High Power Amplifier Comes in a Black and Glossy Extruded Aluminum Chassis with Polished Heat Sink, Red Illuminating Logo, Temperature Display Voltage Meter, MOSFET PSU Transistors, and Fully Regulated PMW Power Supply This Amplifier Also Has Low/Subsonic Pass Crossovers, Pre-Amp Outputs, 200mV-6V Low Level Inputs, Direct 2 GA Power Terminals, 8GA Speaker Terminals, and Bass Remote With Power and Diagnostics LEDs, Unbalanced Inputs (RCAs) and Full-Range Line Outputs (RCAs) this Amplifier can bring you the RMS POWER @ 4-OHMS: 1 X 225W, RMS POWER @ 2-OHMS: 1 X 355W, RMS POWER @ 1-OHM N/A, RMS POWER @ 4-OHMS BRIDGED: N/A Featuring Crossover and Switching capabilities: Variable Low Pass: 40 Hz - 300 Hz and Bass Boost: 0-12 dB at 45 Hz With THD %: 01%, a Signal to Noise Ratio of 90dB, a Frequency response of 10 Hz - 300 Hz, variable subsonic filter of 10 Hz - 40 Hz Lastly, this Amplifier Includes Variable Input Level Controls, and a Four Way Protection Circuit: Thermal Protection, Over-Load Current Protection, Output Direct Current Protection, and Speaker Short Circuit Protection