I use a power supply instead of 9V batteries for my pedals and to power my instrument. Apparently some genius back in the day made it so that pedals require that the power supply plugs, which are the barrel type, are center negative - with the outer ring as positive!?!
So, basically, the chassis and cases of the jacks carry voltage. This is fine, as long as the system is isolated. For some reason, it doesn't short when I connect it to an amplifier.
I also use the pedal power supply to power my IEM amplifier. My problem is that when I plug an XLR line in from the soundboard to this unit, it shorts the power supply.
I thought of lifting the ground from the XLR monitor supply, but this would mean building yet another box.
Any ideas?
So, basically, the chassis and cases of the jacks carry voltage. This is fine, as long as the system is isolated. For some reason, it doesn't short when I connect it to an amplifier.
I also use the pedal power supply to power my IEM amplifier. My problem is that when I plug an XLR line in from the soundboard to this unit, it shorts the power supply.
I thought of lifting the ground from the XLR monitor supply, but this would mean building yet another box.
Any ideas?