Use fewer input channels by combining two mic lines into one.
Use the polarity reverse switch to combine two mics - one with polarity reversed - to combine and correct polarity when using a pair of mics above and below a drum or in front and rear of an open backed guitar amp.
Connections are female XLRs in, male XLR out.
Model # - IMCOM
Input Impedance: 150 Ohms x 2
Output Impedance: 150 Ohms
Operating Level: -50dBu to -10dBu
Frequency Response: 20Hz-20kHz ±1dB