Description
If you’ve ever chased that specific low-end snap that made 90s Ernie Ball Music Man basses a rock and funk staple, the SMB-4D is built to get you there. It’s a direct swap for 4-string StingRay pickups, engineered around two large ceramic bar magnets and a custom coil wind that keeps things tight instead of loose and boomy.
What you’ll feel on the strings: fast attack, a clear midrange that cuts through a band mix, and low end that stays controlled even when you’re digging in hard. Thumb-funk players get the percussive pop they’re after, and heavy rock players get the aggressive front-end bite without losing note definition. This isn’t a vintage-voiced pickup — it’s built for players who want their StingRay to hit harder and speak faster.
Construction details that matter for reliability on stage:
- Two large ceramic bar magnets for a punchy, aggressive tonal character
- Forbon flatwork and 4-conductor leadwire for wiring flexibility
- Vacuum wax potted to eliminate microphonic squeal
- Hand built in Santa Barbara, CA
Fitment notes: this is a drop-in replacement for 4-string Music Man StingRay basses. It may also fit certain OLP instruments, but measure your pickup cavity against this pickup’s dimensions first to confirm. Pair it with Seymour Duncan’s Music Man replacement preamp for a full electronics upgrade. Important — this pickup is not compatible with Music Man basses equipped with a 3-way blade switch.






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