Seymour Duncan SH-JB Hot Rodded Humbucker Set Seymour created this classic humbucker combination while in England in 1974, and it remains his favorite today: An SH-4 JB™ for the bridge and SH-2n Jazz Model™ for the neck. Together they provide one of the most versatile humbucker combinations available. The JB™ owes its popularity to over-wound coils, which provide high output with just the right amount of sustain and distortion--perfect for searing leads. Seymour matched the JB with a Jazz Model™ in the neck for calibrated output and a clear, bright sound--perfect for articulate rhythm playing. This set is great for everything from hard blues to heavy rock. It comes with four-conductor cable for trick switching options. A wiring diagram and mounting hardware are included. The JB is designed for bridges with traditional string spacing of 1.925" or 48.9mm measured over the bridge pickup.