This High Power Metal Speaker Selector Switch box from E-Audio is for use with six pairs of speakers. This selector switch box allows six pairs of speakers to be connected to the output of a stereo amplifier. The pairs of speakers can be selected individually or all together. The switch box has built-in impedance and overload protection. The protection feature can be manually selected to protect the amplifier when more than one pair of speakers is selected at any one time, I impedance switching built into the unit ensures the minimum impedance seen by the amp is 4 Ohm (if using 8 Ohm speakers), no matter how many of the pairs of speakers are switched on.
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