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Love the sound of a traditional Jazz Bass® but tired of dealing with single-coil hum? The Seymour Duncan Classic Stack STK-J1 delivers the familiar warmth, presence, and definition of a vintage Jazz Bass pickup in a stacked, hum-canceling design. You get the character of a classic J pickup without the unwanted 60-cycle hum that can become especially noticeable when using one pickup by itself.
Unlike hotter, more aggressive Jazz Bass pickups, the Classic Stack is designed to preserve a vintage-voiced response. Expect smooth highs, clear note definition, and a classic low-end character. It's an excellent choice for players who like their existing Jazz Bass tone but want a quieter instrument for recording, rehearsals, and live performance.
Available Options: Both positions are sold individually. If you want to replace both pickups, add one of each position to your cart.
The bridge pickup is slightly overwound to help balance its output with the neck pickup. Both use Seymour Duncan's stacked hum-canceling construction, allowing you to use either pickup independently without the usual single-coil hum.
From Seymour Duncan
Seymour Duncan describes the Classic Stack Jazz Bass as a vintage-voiced replacement designed to capture the character of its Vintage Jazz Bass single-coil pickup while eliminating 60-cycle hum. Seymour Duncan emphasizes smooth response, musical presence, and a classic low-end character rather than the exaggerated output of a modern high-output pickup.
Hand built in Santa Barbara, CA, the Classic Stack Jazz Bass uses Alnico 5 rod magnets, Forbon flatwork, four-conductor lead wire, and vacuum wax potting for squeal-free operation.
Size (Neck):
3.600" Long
0.716" Wide

Size (Bridge):
3.705" Long
0.716" Wide

MODEL: Seymour Duncan Classic Stack Jazz Bass STK-J1
AVAILABLE POSITIONS: Neck or Bridge, sold individually
DESIGN: Passive, stacked hum-canceling Jazz Bass pickup
MAGNET: Alnico 5 rod magnets
CONSTRUCTION: Forbon flatwork, vacuum wax potted
CABLE: 4-conductor shielded
OUTPUT
FIT & COMPATIBILITY
Designed as a replacement for a 4-string Fender American Standard Jazz Bass®. The bridge housing is longer than the neck housing, so be sure to select the correct pickup position.
Seymour Duncan STK-J1 Product Information & Wiring Resources
The Classic Stack is designed for players who want the familiar character of a vintage Jazz Bass without the noise of traditional single-coil pickups. The response is smooth and balanced, with a classic low-end bump, clear note definition, and enough presence to retain the recognizable J-bass character.
Unlike the Seymour Duncan Quarter Pound, which emphasizes aggressive output and midrange punch, the Classic Stack stays closer to a traditional Jazz Bass voice. It's a particularly appealing choice when you want the flexibility to favor the neck or bridge pickup without introducing single-coil hum.
As always, keep in mind that these are generalizations. Your experience could be different depending on your instrument, electronics, strings, amplifier, and playing technique.