SP3-AFVP+ Audio Follow Video Preamp Plus

Allows SmartPanel to adjust volume and select from five stereo (unbal) inputs. Configurable gain and tone settings for each input. Plus a (bal) line 'Mix' input for mic preamp, etc. to (bal) output. Includes a 4x1 composite or 2x1 S-video switcher. Also RS-232 controllable.