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.
ART MacroMIX Four Channel Personal Mixer Features - Four input channels, Ch. 1 and 2 have dual L/R RCA inputs, with Ch. 3 you have a choice of one 1/4” or dual L/R RCA inputs and Ch 4 has a 1/4” unbalanced input.
- Four Level controls, one for each channel
- Dual L/R RCA Output connectors
- 1/4” Line Out/Stereo Headphone output jack
- Active preamplification and mixing circuitry
ART MacroMIX Four Channel Personal Mixer Specifications - Input Impedance: 10K ohms unbalanced (all inputs)
- Ch. 1/2/3 and 4 Input Gains: 32dB/26dB/26dB and 26dB
- S/N Ratio: >90dB
- THD: <0.008%
- IMD (SMPTE): <0.008%
- Power: 12V DC (Adapter included)
- Dimensions: 5.625 x 3.75 x 1.75 inches (143mm x 92mm x 45mm)
- Weight: 2 lbs (0.91kg)