BOSS Audio Systems R1100M Riot Series Car Audio Subwoofer Amplifier 1100W Monoblock Class Stereo Amplifier with Stable Ohm Level MOSFET Power x x x x

Output - 1 x 1100W max @ 2 ohms, 1 x 550W max @ 4 ohms Class A/B Technology - Class A amplifiers have a large amount of current flowing through their output transistors even when no audio signal is being received. Class B amplifiers have no current flowing through their output transistors when no audio signal is being received. MOSFET power circuit - MOSFET is an electrical switch that controls the flow of electricity. It eliminates the detection loss of output current and removes all secondary feedback circuits, achieving precise control of output voltage and current. Low & High Level Inputs - The low level (RCA) input is measured in volts. The high level (+/- wire) input is measured in watts. Both essentially carry the signal from the receiver to the amplifier and then to the speakers. Variable Low-Pass Crossover - The subwoofer reproduces sound based on several different low frequencies, allowing you to precisely control the frequency of the sound to be reproduced. Output - Up to 1100W x 1 at 2 ohms, up to 550W x 1 at 4 ohms. Class A/B Technology - Class A amplifiers have a large current flowing through their output transistors even when no audio signal is being received. Class B amplifiers have no current flowing through their output transistors when no audio signal is being received. MOSFET Power Circuit - MOSFETs are electrical switches that control the flow of electricity. By eliminating output current sensing losses and eliminating all secondary feedback circuits, precise control of output voltage and current is achieved. Low & High Level Inputs - The low-level (RCA) input is measured in volts. The high-level (+/- wire) input is measured in watts. Both essentially route the signal from the receiver to the amplifier and speakers. Variable Low-Pass Crossover - Subwoofers reproduce sound based on several different low frequencies. You can precisely set the frequency of your sound to reproduce low frequencies.