Got a Warwick Steamer LX with MEC pups and active preamp (one where you can switch between passive and active modes). I play in a loud rock band and we recently starting recording at rehearsals, with me DIing to the interface. On playback I noticed some fairly nasty distortion which I hadn't been hearing in the room (this is a loud rock band!) Originally I thought it was a battery problem but after replacing the battery, no good. It seems that the distortion only happens when I dig in hard, which is why I hadn't noticed it while practicing at home. Does anybody have any suggestions on how to rectify this? Is it likely to be a fault with the preamp? Would it be easier just to replace it?