Hey, I have an Ibanez ATK300 that I bought second hand. For some reason, when I turn up the bass and mid, I get this unusual distortion effect. Attached is an MP3 where I start out with treble all the way up, then turn up the mid, then the bass, then the volume. The problem is most apparent when the bass is turned up. I replaced the battery, so that isn't the problem; it might be worth noting that one of the wires connecting the battery snapped from the battery plug and I had to resolder it on, but the problem existed prior to that. I don't think it's my amp, as I plugged the bass into my friend's amp only to get the same problem. Does anyone know what the problem could be? Better yet, whether the problem lies within the pickups or the preamp? I'm tempted to replace both with MusicMan pickups and preamp, but it'd help to know if it's fixable before I spend $200+ on new electronics. Thanks for any responses!