Hello, I am new to this site & this is my first post. I'm having some issues with my Ibanez SR506 (six string) bass guitar. Last night I noticed that my bridge pickup had a serious loss of output signal so I had to switch over to using only the neck pickup. It has active Bartolini pickups. Has anyone experienced this problem before? Could it possibly be a low battery? (I haven't tried replacing it yet) It seems odd because the signal is still relatively clear, just very low volume. Any suggestions or guidance will help. Thanks!