The PD3000A pre-amplifier enhances your home audio/video system with power and rich quality audio, and the ability to play back DVDs and MP3s. Boasting 3000 watts of power, it can power up to four speakers using the A/B audio switch. Output video over component for full progressive video. Also equipped with composite video, S-video, coaxial audio, and optical audio outputs. Store up to 50 radio presets.