Billy Sheehan-designed P-style Bass Pickups Designed in conjunction with bass guitar legend Billy Sheehan, the DiMarzio Relentless P set takes the classic P-style pickup to a whole new level. For starters, the shape of these pickups eliminates sharp edges for playing comfort that's nothing short of otherworldly. What's more, the design of these pickups places them extra close to your strings for enhanced dynamics. You also get the same expanded magnetic field as DiMarzio's Model P, giving you a hyper-wide frequency response for extra body and a fat, punchy tone. As for sound, Relentless P pickups boast a passive hum-canceling 2-piece design with 50% more output than typical passive pickups and near-zero electromagnetic interference. To top it off, the bassists here at Sweetwater appreciate that Relentless P pickups are fully potted with metal covers and foil-shielded hookup wires for squeal-free, low-noise operation. Searching for an ultra-high-performance P-style set? The DiMarzio