So, I noticed an odd buzzing noise coming from the top-left corner of my cab today. I'd heard a similar problem before, and took it back to the store I bought it at (Atlanta Bass Gallery.) They checked it out, and told me they could find nothing wrong - and after plugging it in at the store, I couldn't either! So I took off the front grille today, in an attempt to poke around and see if I could notice anything obviously wrong. I can't see anything that looks "blown" (not that I'm sure I'd be able to tell anyway) nor do I see wires or anything up against the tweeter itself that looks like they might be causing that noise. Is it worth taking the cab (more) apart to look at the tweeter from behind? How else could I tell if it's blown? I've emailed Aguilar, but have't heard anything back yet. Thanks for the help, all.