Hello, I recently bought a sire v7, and i really loved it, but when i plugged it in today, I almost crapped my pants. i got an extremely loud static noise. i thought the batteries were maybe dead, so i switched to passive, which resulted in an extremely lpud pop. no sound. Then, I realized than when i touched any metal parts that were somehow in contact with the preamp, the noise got way louder. Any idea what this could be? Maybe the internals are fried? I'm luckily still covered by thomann so i should be able to get it working again, but if it's something i could fix at home, that would be better. thanks in advance...