Sima Technology SSW-L4EX Sima(R) SSW-L4EX Speaker Selector with Volume Control (4 Pairs)

? 100W max, 80W music ;? Freq resp: 45Hz-26kHz;? Users can play speakers individually or in any combination of pairs ;? Dual amp inputs allow 1 audio source in 1 room & a different audio source in another location;? Compact size to fit into any system;? Easy to use ;? Protection circuitry automatically protects the amp from low speaker impedance using auto-impedance transformers ;? Attenuation steps: 11 step, 3dB/step ;? Dim: 17H x 7.5W x 3.25D;? For 4 speaker pairs;? Each;