I don't have another cab to be 100% certain that it isn't my amp, however, it is not any of my basses (all passive) and I have plugged in different amps into the one cabinet and they all sound the same. GK Neo112 and no matter what I do, it has this thin, sort of tinny farting sound whenever I play. I was recording up until a couple of minutes ago. I set the tweeter on the cab about 25% and I was doing some feedback stuff (had on a distortion, delay and a Micro POG). BEFORE I started recording, I had no issues, in the middle of it, issues. Did I just blow my tweeter? And if so, should I contact GK about the stuff being under warranty? This cab is pretty much brand spanking new, so I'm curious. My amp is a GK800RB and I'm certain it isn't the amp. Thanks for all the help.