Anyone get a weak signal from the 1/4" direct out on a Walter Woods head? I've had a couple sound men say there's not much at all coming out of the thing. To compensate, I've had to turn up the input level to the point where the stage volume was too loud. I verified this (I think) by running a line from the direct out into a powered speaker with the same result. Is there some magic trick to get this to work, or should I have Walter check it?