Bogen’s Power Vector Mixer is an 8-channel mixer/pre-amplifier, offering a wide variety of operational features and functions for superior audio performance. Eight module bays accept plug-in input modules, allowing up to four levels of priority between modules. Two module bays are capable of accepting signal processing plug-in output modules. Each module is controlled by an independent volume control with an associated signal/clip LED for signal status, and an 11-segment LED output level meter that monitors output signal level. In addition, the VMIX has a motorized master volume control (that can be controlled using a remote control panel, RVCP, sold separately), bass and treble control, Avg/Peak switch, unbalanced output jack, and balanced output terminal. Optional security covers prevent tampering of settings. The VMIX can be used for various applications including foreground music, background music, and paging. For large applications, several VMIX units can be bridged together. Wide selection of plug-in modules (sold separately) 8 input module bays; each with independent volume controls 2 module bays capable of handling signal-processing plug-in output modules 4 levels of priority between modules Motorized master volume control; remotely operated (with RVCP Remote Volume Control Panel, sold separately) LED signal/clip indicator for each channel Bass and treble controls 11-segment LED output level meter monitors the output level of the mixer with Avg/Peak switch Balanced transformer-isolated output Balanced output signal level switch (-50, -10, and +4 dB?) Unbalanced signal output jack Join multiple Power Vector mixers together using bridging jack and mute terminals 125 Hz Low-cut feature (switch located in module bay 6) Tone control bypass switch (located in module bay 6) Rack mountable (rack mounting kit RPK87, sold separately) Resettable circuit breaker Grounded, unswitched AC convenience receptacle with a 500W maximum capacity provided for external equipment Power indicator Security cover to protect volume, bass, and treble controls (PVSC, sold separately) PVMC module security covers prevent tampering with module controls (8 included) 3-year warranty