This is the third L2500/L2000 Trib I've owned, and this one will not be leaving my posession! A previous owner replaced the stock preamp with an Audere 3ZB and now each pickup also has its own parallel/single coil/series switch. Here are a few shots: In addition to being able to blend the pickups, the nicest thing for me is the treble control. I can dime it and all I get is clarity - no hiss, no harshness. Now, with one or both pickups in series I can add clarity to the power. Very cool!