Hey guys and gals, My used Ibanez SR305 came in yesterday and with a little tweaking, is playing like a champ...except for one thing, there's a buzz or noise that doesn't seem to go away. I searched and found that if it goes away when you touch the strings it's a shielding issue, if it gets louder when you touch them it's a grounding issue. Mine is neither, it does nothing when I touch the strings, which is why I'm inquiring on here. Obviously the treble knob makes it worse, and it does this no matter what amp I'm plugging into. The electronics are all original and don't look like they've been tampered with at all (only the style sweep pot was a little loose, but tightening the nut solved that easily). Just a cheap preamp that has seen better days? I'm going to replace it with a Bartolini NTMB in time, but I just wanted to know if there is anything I can do to help with this while recording.