Seymour Duncan 11402-01 SJB-2n Hot Jazz Bass NeckThe Hot Jazz Bass pickup (SJB 2) is a hot rodded version of the classic Jazz Bass single coil pickup with increased warmth and growl in the bridge and more punch in the neck position. We used that classic jazz tone foundation and added some punch. These pickups are voiced a little lower than a traditional jazz, with a hotter output and fuller low end than the original, giving you boom without too much top end sizzle. The hand ground alnico 5 rod