The Fosi Audio P4 preamplifier supports up to 3 RCA inputs for easy connection to CD players, streamers, DACs, cassette decks and turntables with integrated phono preamplifiers. Switch between sources with one click for seamless audio control. Equipped with volume control, bass and treble adjustment with bypass function, three-stage gain control and a remote control. The P4 stereo preamplifier has a sleek, minimalist design that saves space and provides robust resistance to electromagnetic interference, enabling reliable performance. With a low noise level, high signal-to-noise ratio and extremely low distortion, the P4 preamplifier delivers pristine audio, ensures accurate sound reproduction and enhances the listening experience for audiophiles.