Kinter DC9V to 15V 2-CH Mini Hi-Fi Stereo Audio Amplifier Amp Subwoofer For Car Motorcycle Vehicle Versatile mini-amplifier, 2 channels stereo, for car, motorbike, boat or home use. The amplifier can be connected to literally any source via classic RCA pair L/R. Its small size allows it to be very portable and to be installed anywhere, even in very small spaces.