DiMarzio DP307 Relentless PJ Bass Pickup Set (Nickel)The inspiring new Relentless pickups combine ceramic (Relentless P) and Neodymium magnets (Relentless J), producing a better balance and up to 70 percent more output than traditional passive pickups. And best of all, these titans of teeth rattling tone are dead quiet. Expanded mid range punch, snappy highs and precise lows are hallmarks of the Relentless J, while the Relentless P pickups sound simply massive, offering impressive output levels, beefy