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 equipped with premium 10-step volume controls that maintain full 30dB dynamic range giving you the maximum adjustment capability.