Russound Russound SS-4.2

The Russound SS-4.2 Speaker Selector allows you to switch up to four speaker pairs connected to a stereo amplifier. Each pair of speakers can be turned on or off through individual front panel switches. It provides switchable built-in impedance matching, or can be used with impedance matching volume control. The SS-4.2 is designed for use with 8-ohm loudspeakers. When used with multiple speaker pairs, the impedance matching circuitry lets you operate the system safely with automatic overload protection. ...