SPS2A 2 WAY SPEAKER SELECTOR/ SWITCH WITH VOLUME CONTROL 50W PRO2 PRO2 A-1060PRO2 50W RMS x 2 WAY SPEAKER SELECTOR WITH VOLUME CONTROL Controls two pairs of speakers. The SPS2A is fitted with separate volume controls, speaker on off, and speaker protection on off switches. The SPS2A allows independent volume control and on off capability for up to two pairs of speakers. You choose where and how loud the music is in a particular location, without effecting the entire system. The speaker selection volume control system is