Seymour Duncan Active Jazz Bass (AJB-5) (5-String) – SetActive 5 string Jazz Bass pickups (AJB 5) with an even voicing, and increased output. For those looking to move to an active J pickup configuration, this is the place to begin. The neck pickup blends definition and punch in one powerful pickup with a brilliant response and clarity to a low B. Blend this pickup with the bridge model for the complete package and a new tonal palette for your 5 string. A fully discrete, ultra quiet, 9V preamp delivers low