Seymour Duncan STK-J1B Classic Stack 4-String Bridge Pickup For Jazz B

Seymour Duncan STK-J1B Classic Stack 4-String Bridge Pickup For Jazz Bass

The Seymour Duncan STK-J1B Classic Stack delivers the warm, articulate character of a vintage jazz bass pickup with modern noiseless engineering. This bridge position pickup integrates seamlessly into any Fender American Standard Jazz Bass, providing a direct replacement that maintains authentic tone while eliminating the hum that traditionally plagued passive designs. The compact stack construction fits standard jazz bass routes without modification.

Tone & Electronics

A 20.5 kΩ DC resistance and 7 kHz resonant peak produce a balanced, focused midrange character that cuts through dense mixes while retaining clarity on articulated passages and fingerstyle work. The Alnico V rod magnets and 7/5/6 EQ curve (Bass/Mid/Treble) yield the vintage warmth expected from a classic stack design, translating well in tracking sessions across jazz, fusion, and contemporary bass production.

Studio Wiring & Tonal Versatility

The four-conductor shielded cable unlocks extensive coil-splitting options—series or parallel winding configurations, in-phase and out-of-phase settings, and switchable hum cancellation—without requiring aftermarket switching hardware. This electrical flexibility allows you to explore tonal variations and sculpt the pickup's character across overdubs and takes, expanding your sonic palette far beyond a standard drop-in replacement and opening multiple textures for session work.

Key Features

• Noiseless drop-in replacement for 4-string Fender American Standard Jazz Bass
• DC Resistance: 20.5 kΩ (bridge position)
• Resonant Peak: 7 kHz
• Magnet Type: Alnico V rods
• EQ Curve: 7 Bass / 5 Midrange / 6 Treble
• Four-conductor shielded cable for coil splitting and phase switching
• Selectable series/parallel winding configuration
• Switchable hum cancellation with four-conductor design
• Includes mounting hardware
• Wiring schematic provided

The STK-J1B combines authentic jazz bass character with modern noise rejection and wiring flexibility, making it an intelligent upgrade for producers and engineers seeking tonal depth and session-ready reliability without compromise.