I recently had a new client for a live media tour day that insisted on the two talent being hardwired which was going to force me to buy (2) Sanken Power supplies which are pricey and do not work with all brands of lav microphones. After doing some research I found the Ambient Eumel which will accept any Ta5 wired microphone and power it using a switching circuit built in the plug. Allowing to power anything and at a price under $125.00 a very good tool to have in your kit.
Tech Tip: Ambient Eumel Lav Power Supply
Pro Location Sound LLC 