The S4 is a rail-design pickup with side-by-side coils, a ceramic magnet, and a solid cover cap. It's not overwound like most rail pickups, for beefier low-end and midrange, but has the crisp highs of a traditional single-coil pickup. This HZ pickup has EMG's exclusive 5-wire Quik-Connect output allowing any number of wiring combinations, and is fully shielded for a minimum of noise. String grounding is recommended to further decrease noise. Comes in black.