I just bought an Epifani Series 2 UL-210 and there's a rather loud and constant wooshing noise from the tweeter. I have my master volume up to max and the gain at about 9 o'clock, and it's almost like a fan/wind tunnel sound. Funny thing is, is that I called Nic at Epifani, and he said it's not the cab and that it could be the head, even though I tried my head through an Ampeg and there wasn't any noise through that cab. But, I did test my 210 in my apartment, so maybe it could be the grounding/wiring in my place? The gig I was at this weekend was too loud to tell if that noise was there, so anyone have any helpful info? It's a great cab and the weight is awesome, but the windy fan-like noise bothered me. The noise went away when I turned the tweeter off, but it shouldn't make this sound on FLAT/Normal.