This AV:Link 4-way switcher unit allows the distribution of a stereo amplifier. Connect the output of an amplifier to the selector box, and this output can then be distributed to up to four different stereo speaker sets in multiple locations. Each speaker set can be controlled independently with heavy-duty push-buttons. The unit includes built-in overload protection and is designed for 4-16 ohms speakers. Wiring is done via spring clip terminals for 14 to 22 gauge wire. It features 1 stereo input and 4 stereo outputs, with a maximum power handling of 140W per channel. The dimensions are 215 x 110 x 45mm and it weighs 1.2kg.