12-channel Systems Integration Amplifier. Each channel delivers 25 watts and provides the energy necessary to deliver solid, deep, and controlled bass to a houseful of speakers! Output pairs are bridgeable, so you can create up to six 50 watt channels. Signal to noise ratios are equal to a professional mixing board found in a recording studio. Play music in the den without interfering with television in the living room! Each channel has its own volume level control (however, not remote controlled). Many more features!