The "9CBJD-L1/S1" combo for a Jazz Bass.

Classic J-Bass pickups give you enhanced treble response and narrower apertures for incisive attack and focused sound without harshness. This added treble definition vastly increases the tonal range available in active or passive instruments. When you dig in, they are responsive and growly. When you pull back, they are clear and sweet. And they’ll take any slapping and popping you want to give them. The Classic Bass series is popular with progressive, jazz, gospel, and metal musicians where articulation is critical. They are sweat-proof and won’t crackle and thud when you touch them or hit them with the strings.
If you play a wide variety of music, you know you need some pro-level pickups, but you don’t want to do a big upgrade project, Classic Bass pickups are a great choice. They are passive and will work with your current electronics in most basses. These dual inline-coil pickups are hum-cancelling even soloing the neck or bridge pickup, so they are well suited for studio or stage.
Available in balanced bridge and neck versions.

The “Classic Bass” series bass pickups are passive designs featuring an extended and more resonant frequency range. They have far more “air” and definition at the top without sacrificing lows and low mids. They are cast in epoxy to remove unwanted feedback and microphonics.

We often hear from bass players after upgrading who say they had no idea their bass could sound so good. When you dig in, they are responsive and growly. When you pull back, they are clear and sweet. And they’ll take any slapping and popping you want to give them. The Classic Bass series is popular with progressive, jazz, gospel, and metal musicians where articulation is critical. They are sweat-proof and won’t crackle and thud when you touch them or hit them with the strings.
If you play a wide variety of music, you know you need some pro-level pickups, but you don’t want to do a big upgrade project, Classic Bass pickups are a great choice. They are passive and will work with your current electronics in most basses.

For full details, specs, dimensions and wiring diagrams check out the USA Bartolini webpage here:
Bartolini 9CBJD L1

NB: Prices are in NZD and include 15% GST.  For Australian & International customers the GST will be removed at checkout