The Mudcat Café TM
Thread #167014   Message #4022731
Posted By: leeneia
07-Dec-19 - 11:55 PM
Thread Name: Tech: PA goes berserk
Subject: Tech: PA goes berserk
Two hours ago we were having English country dance at a local church. The callers use microphones attached to a PA system tucked in a closet, but nobody had a mic on when it happened. The mics were lying on a table about 40 feet away from the PA, with all its dials.

What happened was a loud, raucous, scratchy blast of sound which had people all over the room throwing their hands over their ears. Our guitarist screamed from the pain of it, while I scanned the ceiling, looking for the roof to come down.

The system had operated fine before that: from 6 pm to 9:30.

Any idea why something like that would happen?

Our leader raced to the closet and shut off the power.