A new Headband Microphone for the Megavox

Anchor HBM-60 Headband mic
The supplied headband microphone that comes with the Megavox Pro is not really sturdy and when you move a lot the microphone moves up and down. Secondly the whole headband construction is really flimpsy. So i set out to replace the headband mic.
The wireless receiver (WBM-6000) uses a 4-pin mini XLR male plug for the microphone input although only 3 wires are used to power the mic. I don’t know the reason why Anchor Audio uses a 4-pin plug, but this certainly limits the available headband microphones that can be connected. And also the wiring is different than most other plugs, so you need to be carefull.
So i went on internet and found this headband microphone from monacar that uses a 4-pin XLR plug. I could buy it from a local dealer in the Netherlands since Monacor does not sell to end customers. The price was 125 euro. When i received it by mail i tried it out for a quick test to see if it would work on the receiver. It didnt…. Be

Monacor HSE-130 Headband mic
carefull what you do here because when the wiring is different it could fry the microphone. So i needed to change the wiring of the 4-pin XLR plug on the headband mic. I e-mailed Anchor audio to find out the wiring schema of the WBM-6000 and also found the wiring schema of the Monacor mic (HSE-130) (see images). Then i resoldered the wires to the correct positions (see image below). Afterwards i tested the microphone and it worked!. I was really impressed by the sensitivity of the monacor mic compared to the supplied headband mic. It really picks up your voice more clearly and more loudly.
Here are some instructions with photos to show you how to do it:
Open the mini-XLR plug and locate the wiring of your HSE-130. It should be like this :

Wiring of the HSE-130 Headband mic on the Belt Pack
The wiring of the WBM-6000 Belt pack is different as you can see from this image:

Wiring of the WBM-Belt pack
So to get the HSE-130 working on the WBM-6000 belt pack we need to change the wiring:
HSE-130 -> WBM-6000
- The powersupply wire (on pin 4) needs to be soldered on pin 3
- The Audio in wire (on pin 3) needs to be soldered on pin 2
- The Mass (ground) wire (on pin 1&2) needs to be soldered on pin 1

Rewiring from HSE-130 -> WBM-6000
So with this guide i hope you can change your headband microphone for another type. I attached the wiring schema files for your conveinance:
