Model WTSD-MIX41K is a 4x1 Mic/line Analog Mixer that features four balanced microphone/line inputs and a balanced line output. Selection between mic or line level is done via dip switch on the rear panel. The high gain mic inputs incorporate user enabled phantom power for condenser microphones and a 120Hz low cut filter to eliminate unwanted low frequency interferences. A global mute function can be triggered via local switch. Separate level controls for each input provide control for the audio mix needed. Input peak and signal indicators give visual reference to set the gain structure for maximum performance. The WTSD-PWBOB comes with each unit and features a balanced audio output with signal, mute, system priority and power LEDs and 12V DC logic output for remote system muting or power sequencing.