I love the Behringer ECM8000 measurement mic - in fact the idea of AutoEQ came from a rainy day in Somerset with Roger, John Ripley and me in Roger's car with my ECM800 and UltraCurve2496 basically trying to determine how Roger's EQ should be set for a flat response. Sadly the ECM8000 specifies 15-42 volts DC supply (typical for pro equipment).

I can think of no better recommendation. And, because I have a 9V battery operated phantom power supply (as linked to in the other thread), I think this will be a good choice. Thanks!