Power Vector Mixer/Pre-Amplifier is an 8-channel mixer/pre-amplifier, offering a wide variety of operational features and functions for superior audio performance. It can be used for various applications including foreground music, background music, and paging. For large applications, several units can be bridged together. VMIX Features: Wide selection of plug-in modules (sold separately) 8 input module bays; each with independent volume control 2 module bays capable of handling signal-processing plug-in output modules 4 levels of priority between modules 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 peak hold switch Balanced transformer-isolated output Balanced output signal level switch (-50, -10, and +4 dBμ) Unbalanced signal output jack Join multiple power vector mixers together using bridging jack and mute terminals 125 Hz lo-cut Tone control bypass switch Rack mountable (rack kit sold separately) Resettable circuit breaker Grounded, unswitched AC convenience receptacle with a 500W maximum capacity provided for external equipment Power indicator Frequency Response: 20 Hz to 20 kHz Power Consumption: 21 watts UL listed