It's a Soundtech M660 with the following connectors and speaker outputs:
  • Mic In XLR
  • Line In 1/4" two conductor (phone) plug
  • Aux Returns (1/4" plugs)
  • Main Out 1/4" connector
  • Tape Out (dual RCA phono output)
  • Tape In (dual RCA phono input)
  • Rear Panel Main/Monitor Outs (dual 1/4")
  • Rear Panel Main Outs (dual 1/4")
The intent is to use the 950 to enable video switching (e.g., projector, laptop, etc.) in conjunction with the public address audio (e.g., mics, headsets, etc.).

Hopefully that makes sense.