DiMarzio DP295 Billy Sheehan Signature Relentless Neck Pick Up (Black)Billy wanted his neck pickup to have "super deep low end." The Relentless Neck does the job with a very low resonant peak, giving all the lower frequencies more depth. The low end carries well even as you play in the upper registers of the fretboard, basically holding the bottom end in a live situation regardless of where you are on the fretboard. Specifications Quick Connect: No Wiring: 4 Conductor Magnet: Ceramic Resistance: 21. 06 Kohm Year of