How is a Shure WL180 series mic wired to work with a RevoLab bodypack transmitter?
The RevoLab device has DC bias and audio on pin 3.
Shure employs DC bias on pin 2 and audio on pin 3.
Connect the WL18x mic as follows::
· Shure WL shield to RevoLab pin 1 ground
· Shure WL black (audio) to RevoLab pin 1 ground
· Shure WL red (bias) to RevoLab pin 3
Though this scheme shorts the WL18x audio wire to ground, the red bias wire is now modulated with the audio signal.