Snowdog wrote:
I know that there has to be a solution for this and I know the vast wisdom
of this group is a good place to start. Our bass player gets shocked when
his lips touch the mic screen while wearing and playing his bass. Is this a
grounding issue?

Shure Beta 57a plugged to a Mackie board with a regular xlr cord. Phantom
power is off.

While others have given good advice on having the bass amp correctly
grounded, you haven't told us what the situation is. Is this in a club?

Or is this a house with old style wiring?

Rob R.