Description
If your J Bass needs more weight down low without turning to mud, the Bartolini 9J1-L/LN set is worth a serious look. This is a matched neck and bridge pickup pair designed as a direct replacement for Fender Jazz Bass style instruments, and it’s earned a loyal following among working bassists and the luthiers who build for them thanks to its dark, dense tone and pronounced low-mid character.
- Dual in-line coil (split-coil) construction for each pickup
- Passive circuitry – true to the original J Bass wiring approach, no preamp required
- Epoxy-potted coils to fight microphonic squeal and stage noise, so you get clean signal even at higher gain
- Both neck and bridge pickups measure 3-3/4″ in length
That epoxy casting matters more than it sounds – it’s the difference between a pickup that stays quiet under hot lights and heavy stage vibration and one that starts howling feedback the moment you crank your amp. For gigging players who need reliability as much as tone, that’s a real advantage.
Before you order, grab a tape measure. Not every Jazz Bass pickup cavity is cut the same, and pickup lengths vary across different J Bass builds. Confirm the physical dimensions of the pickups currently in your bass so this set drops in without any routing or modification.
Bottom line: if you want that classic J Bass growl with extra low-end authority and a quieter noise floor, this Bartolini set delivers a proven upgrade path.






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