I hope that everyone had a good holiday and that your minds are nice a clear. Now, the following picture was taken when I was asked to service an Amplifier. Now this is a home amp, not a professional PA one. However, I have seen a few professional ones in a similar condition. Here are the things that I would like you to consider: What is the problem? What can this problem cause? and how What can be done to prevent the problem? Think about the amps that your school/theatre/church have and where they are located.