Seymour Duncan Quarter Pound Jazz Bass Pickup SetThe Quarter Pound Jazz Bass pickups have it all: hot output, great attack and massive attitude. The 1 4 diameter poles and hot coil winding delivers a full, even response with great sustain and sonic complexity for a powerful tone suited to any genre. You get the higher output of an overwound coil, with the articulation and detailed high end of a vintage pickup. The neck position model is wound RWRP (reverse wound reverse polarity) for hum