Seymour Duncan 11406-02 APJ-1 Pro Active P-J BassActive precision jazz bass pickup set (APJ 1)with a modern look and voicing that delivers increased output and punch. The Pro Active PJ is a balanced pair of active precision jazz bass pickups engineered for bigger, more aggressive tones with a modern look and feel. This set excels at being clear and articulate without being brittle. The low end is there, but the lower mid frequencies are king of this pair, providing the right balance of attack and