Our stereo speaker distribution center has 6 stereo speaker outputs, which can be independently controlled, and each zone has an on/off switch. It features an A/B source selector, automatic impedance matching, special circuitry to avoid over heating, and a volume control. Its sleek black appearance allows the speaker distribution center to blend with other audio equipment. There is zero power loss in each zone when all six SDC-6VC/70V controls are set at maximum volume. The distribution center will equally distribute the sound to each of the speaker pairs without power loss. It has 12V speaker outputs with up to 25W RMS continuous at 70V per speaker output. It also has a rotary switch. Heavy duty screw type connectors are provided on the rear panel to ensure long lasting low loss connections.