Problem: You need to add 3 mics to a mixer, which only has one available channel.
Solution: Insert a ProMIX between the mics and the mixer. Each mic channel on the ProMIX has both phantom power and low-frequency cut selectable via DIP switches plus a level control. The balanced XLR line output can be connected to a mic input on the mixer and headphones or a powered monitor can be connected to the Phone/Aux output. And if AC power is not available, the ProMIX runs on batteries as well.
Specs
Signal To Noise Ratio > 90dB
Maximum Gain +40dB
Input Impedance 10K Ω
IMD (SMPTE) <0.008%
Power Requirements 12V DC (Adapter included)
Total Harmonic Distortion <0.008%
Dimensions 5.625×3.75×1.75 inches (143mm x 92mm x 45mm)
