The Porter Jazz Bass Pickup Set features AlNiCo 5 magnets and black covers. Their standard wind for this set results in a nice fat and punchy sound you expect from a good end jazz pickup, with plenty of clarity and classic tones. The goal with the wind was to product a nice and tight sound, while providing a good representation of the tones so many love about the J pickups. These pickups are very responsive to how you play technique wise.