hey all, i must admit, i hadn't picked up my bass in a month or so due to lots of stuff goin on, but i picked it up today, and when i turned the amp, it was all silent. no hiss or anything. i plugged in the input cable, and the loudest most annoying buzzing came out of the speaker. i unplugged the guitar from the amp, and it still buzzed, so i dont think its the guitar. the cable is also brand new, i dont think its that either. any ideas?