PA Speaker Troubleshooting. Can anyone suggest some good sites. I have a Peavey 2x15 with a horn, speaker cabinet that no longer produces sound out of the horn and one of the 15" speakers. I am having a hard time trying to find out what speaker I have and the peavey site is either crap or am having a mental cramp when trying to search for info relating to this enclosure. I did noticie the protection circuit lighting up prior to the speakers no longer functioning. When we removed this device eevrything looked ok. (ie the light bulb device did not look burned out). If someone could please point me in the right direction I would appreciate it. Thanks in advance.