· Run up to 4 pairs of speakers from an AV receiver with only 1 speaker L/R output · Listen to speaker set 1, 2, 3, or 4 individually or all simultaneously · Stylish design - integrates perfectly with new flat screen TVs and receivers · Stands horizontally or vertically for maximum flexibility This state of the art switching box allows you to select between or control speakers in 4 different rooms or locations. The spring loaded terminals on the switch box allows secure and easy access for cable of up to 2.5mm diameter, while the unit provides for full amplifier circuitry protection maintaining the load at the amplifier at 4 Ohms, regardless of how many speakers are attached. Max 75 Watt output .