Ampeg PR-410 HLF problems.

[erock138]

So I got this cab a few months back, and it worked great for while. It started crackling, and distorting pretty badly. I noticed then that the horn wasn't functioning correctly, so i replaced it with a new one. And, it sounded amazing. Then, about 3 days later, it all started again. I'm going to try to burp the speakers with a 9v. Anybody else have any other advice? I've researched these now, and suppossedly they have given manyyy people the same sort of issues. It sounds like it's mainly cracking out of the horn, more than the speakers.

Thanks in advance.

 

[fishtx]

could be the crossover on the control circuit board...I had one go out on me, but the system was the horn just stopped working....they are very simple to replace (just replaced the entire control panel......and I don't think it was too expensive

 

[erock138]

Thanks for the reply, do you have any idea where you got it? I can't find a replacement online anywhere.

Thanks again.

 

[thunderfish]

Sorry to be posting this seven years later. My horn had a mean distortion just when hitting an A (resonant frequency - pretty weird). Replaced the horn and it still did it. Inspected the crossover and found a broken solder joint. Was able to fix. Worked reliably until I played a block party and absolutely cranked it to get the low end to project. I either blew the tweeter now or have the same problem. I haven't checked yet as I just turned the tweeter down for the rest of the gig and a subsequent one. At least I have a path to troubleshoot (and a spare tweeter if that's the problem).