Shure SCM810 8-Channel Automatic Mixer 100811073 and an automatic ambient pressure

and an automatic ambient pressure equalization valve (MIL-STD-648C) to assist with moisture control

18 A peak (230 V AC)

Frequency range: A: 516 - 558 MHz

power supply and amplifier thermal protection

With its 8" woofer and 1" titanium tweeter

Shure SCM810 8-Channel Automatic Mixer 100811073 and an automatic ambient pressureShure SCM810 8 Channel Automatic Mixer 8 channel automatic mixer improves audio quality in any application in which multiple microphones are required. Features include fast microphone selection, adjustable EQ, adjustable low frequency roll off, and peak responding output limiter. Features: Fast, noise free microphone selection, which automatically adjusts to changes in background noise Automatic gain adjustment as additional microphones are activated