Description
If you’ve ever felt like your P or J pickups were holding back the low end, the Quarter Pound set is Seymour Duncan’s answer. These aren’t your standard-diameter pole pieces — they’re a full quarter-inch across, which widens the magnetic window under each string and pulls more frequency range into the signal. The result is a fat, punchy voice with serious mid-range push, the kind of growl that cuts through a busy mix without needing a boost pedal.
The SPB-3 handles P-Bass duty here, and while it’s become a go-to for heavy rock and metal players who want that aggressive front-of-the-mix bark, don’t box it in — dial back your amp’s gain and it cleans up into a surprisingly versatile voice for a single-pickup instrument. That’s part of why it’s one of the best-selling Basslines pickups out there.
On the bridge side, the SJB-3 is a true single-coil built for high output. It’s the pickup for players who loved the Hot Jazz but wanted more bite on the attack — same quarter-inch poles, more aggressive winding, plenty of sustain to back it up. Suits blues, classic rock, garage, heavy rock, and metal tones equally well.
- SPB-3 for Precision Bass, SJB-3 for Jazz Bass bridge position
- Quarter-inch pole pieces for expanded magnetic field and frequency range
- Black logo covers, wiring diagram, and mounting screws included
- Free strings included with this set
Want more shaping power? Pair this set with an STC-2 or STC-3 Tone Circuit for a complete active tone control setup.






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