Nipponamerica SPA-140SEL 4-Way Dual-Source, Impedance-Matching Speaker Selector with Zone Volume Controls.

Speaker Selector with Zone Volume Controls 900W total Music Power 300W total RMS continuous Power handling Heavy Duty Transformer based Impedance matching System protects against Power loss Left and Right channels are completely isolated for safe Operation with any Amplifier, even bridged Amplifiers Quick connect Terminals will accommodate 16 to 22Ga Wire Can be connected to two separate Amplifiers via A/B Switch Circuit Breaker protected FeaturesControl your home sound system with the Studio Z 4-Channel Stereo Speaker This 4-way speaker selector lets you distribute power and sound between 6 zones of speakers for customized sound and easy control. Add this speaker selector to your home audio system and control up to 4 independent pairs of speakers. The box features integrated volume control so you can adjust the volume right from the box.This channel selector distributes up to 900 watts of total power and 300 watts of total RMS power handling to your speakers. Customize your set up wi