Please settle a matter for us. We need a professional opinion. We have Shure SM58 microphones at our church for our praise team to use. Is it ever ok, when checking sound, to bang on a mic to see if it’s on. If not on these models, on any mics?
No, you should not. It will not hurt the microphone, but you stand a chance of damaging your loudspeakers. Instead, try snapping your fingers in front of the mic.