•Power Series 1-Channel Class BD Car Amplifier •RMS Power Rating: ◦4 ohms: 250 RMS x 1 chan. ◦2 ohms: 400 RMS x 1 chan. ◦1 ohm: 500 RMS x 1 chan. •MOSFET Power Supply •This Class-BD amplifier has 75-80% efficiency ratings vs. 20-60% efficiency ratings of traditional class A/B amplifiers •Built-in differential inputs eliminates noise picked up the signal cable •Remote bass level input (remote level control sold separately) •LED power, thermal, and protection indicators •Tuned Bass EQ (0-12 dB bass boost at 45 Hz) •Audiophile grade speaker connections •Infrasonic filter •1 pair RCA Input •1 pair RCA Output •RCA pass-thru •Cast aluminum convection cooling evenly distributes excess heat across entire amplifier heatsink •Variable low-pass filter (35-250 Hz, 24 dB/octave) •CEA-2006 compliant amplifier •Frequency response: 20-25000 Hz •Dimensions: 11.41" L x 8.14" W x 2.14" H •4-gauge power and ground leads recommended. Contact us for information regarding a discount on a select amplifier kit when purchased together.