This is a VR3 VRA2.0 200 watt, 2-channel car audio amplifier. This 200 (50 Watts RMS x 2 @ 4 Ohm) watt amplifier features an adjustable 3-position (Bass, Treble, Flat) crossover. It is ideal for driving a single subwoofer or a pair, or you can also use it run your highs or component system. By being equipped with this built-in crossover (50 Hz - 250 Hz), you won"t have to spend extra money on additional crossovers. This MOSFET amplifier also has a RCA line input and line output, which can be used for daisy chaining additional amplifiers. Additionally, the adjustable sensitivity and bass boost dials, allow you the flexibility to dial in the perfect amount of bass to suit your car stereo system. This unit has been remanufactured to 100% of its original factory specifications.