Lighting Guy here, venturing into dangerous territory I acquired a B-52 PA system over the weekend and have come across an issue with one of the cabs. I tested both speakers out at the place that I bought them and they worked flawlessly. Once I got them home, I set them up with my mixer. I plugged my ipod into the RCA inputs on the mixer, I ran the signal out of the RCA outputs on the Behringer and into the playback intputs on the B-52 amp. I wasn't clipping on the board and was running the amp at about 25%. One of the tweeters began to cut in and out. I removed the Behringer from the situation and plugged my ipod directly into the playback inputs on the B-52 amp. It worked fine for awhile then the tweeter began to cut out again and eventually died for good. I troubleshooted for and hour and traced the problem back to the tweeter. I replaced the working tweeter into the bad speaker and it worked fine so I'm sure that the tweeter is the problem. The part number for the tweeter is PHT-409. It's made by a company called P Audio. The only place I could find that sells it is out in Cali. and shipping is ridiculous. I'm wondering if you guys know of any closer companies or stores in the central Ohio area that might stock this part. Also, what could cause the tweeter to blow? Is it possible that my Behringer was sending "corrupted/bad" signal and was therefore messing with the amp/speakers? I'm worried that If I replace the tweeter that the problem will return. It is a safe bet to just replace the tweeter or should I take it to a shop and have it looked into more in depth, maybe the problem lies elsewhere. What do you guys think? I have a multi-meter and all sorts of cable and amps so If there are any tests that I could run to give you more info, let me know and I will get them taken care of and post the results. Thanks a lot!