Niles SPS-6 ( USED Piece )

The SPS-6 enables you to connect up to six pairs of speakers to your stereo receiver or amplifier and play one pair, any combination of pairs or all pairs at once.Add up to 6 pairs of speakers to your system with this handy tabletop speaker selector from Niles Audio. Protection circuitry is built in, so there’s a safe operating load for any amplifier or receiver rated up to 100 watts per channel. The SPS6 connects all speakers in parallel and the button on the front of the unit adds 3 ohms of resistance to the total load. Ohms law can then be applied to determine the operating load of a given combination. For example: when 4 pairs of 8 ohm speakers are used with this selector’s built-in impedance correction circuit, the amp will see a 5 ohm load. If you use 4 pairs of 4 ohm speakers, the total load drops just below 4 ohms. In this case be sure your amplifier can handle a 4 ohm load.