The QED WM15 in wall speaker selector switch enables you to connect two pairs of speakers to an amplifier.
You can then select between the speakers, or play both pairs at the same time. Perfect for kitchen + dining room setups or kitchen + patio etc.
The QED WM15 selector switch can be connected to amplifiers up to 150W per channel.
It is wired in parallel for optimum sound performance, but be sure to connect compatible speakers to compatible amplifiers. For example, if you connect two pairs of 8 ohm ceiling speakers then the amplifier will see a load of 4 ohms. Most amplifiers are designed to run this adequately.
However if you connected two pairs of 4 ohm speakers the amplifier will only see 2 ohms and may risk thermal shut down.