Hardly used Shure SCM410 4 Channel Automatic Mixer is a 4 channel microphone mixer designed for recording, sound reinforcement and broadcast application. The mixer will accept signal from dynamic and condenser microphone of any type. The rear panel features 4 balanced 3-pin XLR female microphone inputs and a single balanced XLR output that is capable of mic or line level signal. Each channel features an adjustable EQ for signal contouring and 12VDC phantom power is available for condenser microphones. 4-Channel mic mixer for recording, sound reinforcement, and broadcast; Accepts signals from dynamic and condenser microphones;4 Balanced 3-pin XLR female microphone inputs and 1 balanced XLR output upon rear panel; Adjustable EQ signal contouring and 12VDC phantom power upon each channel; IntelliMix technology for noiseless automation and channel switches; MaxBus feature controls channels activated for 1 sound source; Noise Adaptive Threshold auto-adjusting noise level technology to distinguish background noise from speech; Last Mic Lock-On function keeps most recently activated microphone open Cost new $900