today, when i went to a friend's house to jam, i started to notice a rather loud, annoying hiss out of my amp. I'm not sure whether it is my L-2000 or my Squier BP-15. It never did this before...but today it did. I also noticed that my battery is kinda weak...but before i went to my friend's house, i was loading the bass (inside the hardshell case), it fell over on the ground...it didn't fall hard...it only fell over (tipped over). But it was snug in the case. When i plugged it in at my friend's house...it hissed rather loudly. What the heck is up!? is it because the battery power is low? or what? It hisses loud in passive and active.