Does anyone want to list the symptoms of a blown speaker (or malfunctioning amp)? Obviously, distorted crackle may top the list for a speaker, but can they do other things? I have an active FOH speaker that suddenly decided to be much quieter than the other two. It is flown at around 20ft and not very accessible so it wasn't just turned down. The FOH mixer runs stereo into a Peavey DSP and then splits into 3 balanced mono output channels to the FOH speakers. Suddenly the right speaker went very quiet while the left and center remained good. Any help in troubleshooting would be appreciated here.