PowerBass XTA 2250D 2250 Watt By 1 1 Ohm Mono Block Amplifiers XTA Series Monoblock Class D Car Amplifier RMS Power Rating (14.4V): 4 ohms: 565 watts x 1 chan. 2 ohms: 1125 watts x 1 chan. 1 ohm: 2250 watts x 1 chan. Pulse Width Modulated MOSFET power supply Wired remote bass level control included Designed and Engineered in the USA