Good Connections Speaker Switch Box for connecting

This is a well built basic speaker switch but be aware of 2 things:1. All the speakers are simply connected in parallel, so you could easily overload an amplifier. If you need to run 4 pairs of speakers at the same time, you need a more expensive switch with impedance protection.2. The black connections for each channel are commoned (joined together). This is fine for most amplifiers, but some use bridged outputs - which will be damaged using this switch.If you only need to switch between speakers - and won't run more than 1 or 2 pairs at a time, this is a good buy.

Doesn't work with exception of tripping you music system