Yep, I didn't think you knew Ohm's Law. The formula is P=E X I. There's a neat calculator you can use in that link I posted. Give it a try--you'll learn something.

Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)