4-Way Stereo Speaker Selector Switch Box for 2 or 4 Speaker Pairs

4 Way Loudspeaker Selector. 1 x 4 Way Loudspeaker Selector. Enables two or four pairs of speakers to be connected to the stereo output of an amplifier. This range of compact switch allows for two or four pairs of speakers to be connected from one amplifier, giving the ability to select any pair individually or all together.

eBay