Description
The Quarter Pound name isn’t marketing fluff — these SPB-3 and SJB-3 pickups genuinely use quarter-inch diameter pole pieces, and that extra magnet mass is exactly why they hit harder than a standard-diameter single coil. The wider poles pull in a broader magnetic field, which stretches the frequency response and piles on midrange presence most vintage-style pickups simply don’t have.
The SPB-3 for P Bass is built for players who want maximum output without sacrificing versatility. Yes, it’s a go-to for heavy rock and metal tones thanks to that aggressive push, but the tonal range underneath makes it Seymour Duncan’s best-selling Basslines pickup for a reason — it covers far more ground than its reputation suggests. Comes with black logo covers, a wiring diagram, and mounting screws.
The SJB-3 is the true single-coil J Bass counterpart, voiced for players chasing blues, classic rock, garage, heavy rock, classic metal, and nu-metal tones. Where the standard Hot pickup gives you slam, the SJB-3 adds sharper attack on top of it — the combination of quarter-inch poles and dense winding keeps the response full while giving you noticeably longer sustain. Ships with a logo cover.
- Quarter-inch pole pieces for extended frequency range and increased output
- SPB-3: fat, punchy P Bass tone with strong midrange presence
- SJB-3: high-output true single-coil with sharper attack and long sustain
- Mounting screws, wiring diagram, and logo covers included
Want even more control over the low end? These pair well with an STC-2 or STC-3 Tone Circuit for a complete active tone-shaping setup.





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