PrecisionPower ProMOS Series 4 Ch. amplifiers deliver pristine sound quality and exceptional performance for your car audio system. With their switching power supply, over-current protection, high current capabilities, and internal bridging, these amplifiers are built to handle the demands of even the most rigorous listening environments. They feature a wide power bandwidth, low total harmonic distortion, and impressive signal-to-noise ratio, ensuring crystal-clear audio reproduction. The ProMOS Series 4 Ch.