I'm going to bring this bass in for repair tomorrow, but I thought I'd run this by you guys as well... My 5501 was working fine yesterday. Today, I plugged it in and my rig started to make a sound like the cabs were blown (like "flappy" speakers). I figured it might be the battery, so I changed it - no good. So, I plugged in my Squier DAJV, and: no problems with the cabs. Plugged in my other active bass - same thing, no problems. On a hunch, I plugged the Lakland back in and pulled the preamp bypass. NO PROBLEMS. But, no matter how many times I tried to get it to work with the preamp, no go. FYI, the electronics are all stock. I have to get the jack changed as it was bent outta shape by a Monster cable, but the bass has been fine other than that since I've owned it (in Feb). Any ideers as to what the problem might be? Thanx!!!