Source:Portman Shore Electronics, Westwood Village, CA (undated)
Operator's Manual for Sound Sweep 5050. Illustrated with photographs and diagrams, controls views. "...Soundsweep adds a whole new dimension to your existing sound system...movement. You can program Soundsweep to actually move the sound around your dance floor in an endless variety of patterns. You can create spins. figure 8's, moving stereo sound, quad sound, pulsing sound, and countless other effects."