Seymour Duncan TB-4JB-N - JB TREMBUCKER EASEL NICKEL
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Manufacturer Information
Seymour Duncan
https://www.seymourduncan.com
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Algam SAS
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A Seymour Duncan Classic Designed for the Bridge
The JB is one of the most iconic humbuckers for boosting a bridge guitar without sacrificing definition. In the TB-4 Trembucker version, it retains this punchy and expressive tonal signature while optimizing string-to-string balance on instruments equipped with a vibrato or a wide-spacing bridge. The result: a sharp attack, harmonics that are easy to bring out, and a musical dynamic even at high gain levels.
For Which Styles and Guitars?
This pickup is aimed at guitarists who want a powerful and versatile bridge pickup : muscular blues rock, hard rock, metal, but also pop/rock when more presence and sustain are sought. It is particularly suitable for guitars that need to be "woken up" at the bridge, and for anyone wanting solid riffs and singing solos, with excellent palm mute and bend response.
Design Details Serving Tone and Stability
With its Alnico 5 magnet and high outputwinding, the TB-4JB-N combines precise lows, biting upper mids, and rich highs, very effective for standing out in a band setting. The pickup is wax potted to reduce microphonics and remain stable at high volume. The 4-conductor shielded cable opens the door to modern wiring options (split, parallel, etc.) to tailor your tonal palette to your playing and guitar.
Technical specifications
| Electronics | Passive |
| Category | electric microphone |
| Instrument | guitar |
| Magnet | alnico V |
| Winding | double |
| Number of conductors | 4 |
| Position | bridge |
| Color | Grey |
| Colours | Nickel |
| Brand | Seymour Duncan |
| Model | TB-4JB-N (JB Trembucker) |
| Type | humbucker (dual coil), passive |
| Spacing | Trembucker (F-spaced type) |
| Output Level | high |
| DC Resistance | 17.4 kOhm |
| Wiring | 4-conductor shielded cable |
| Treatment | wax potted |
| Finish | nickel cover |
| Number of Strings | 6 |
| Made in | USA |
Questions frequently asked
Is the TB-4JB-N suitable for a Floyd Rose type bridge?
Its Trembucker spacing, of the F-spaced type, is designed for guitars equipped with a vibrato or a wide-spaced bridge. The bridge position and 6-string format correspond to this setup.
What tone does this Seymour Duncan bridge pickup produce?
The Alnico 5 magnet and 17.4 kOhm DC resistance deliver a high output level. The sound emphasizes tight lows, biting upper mids, and rich highs. Palm mutes, bends, and harmonics retain a defined attack even with high gain.
Can the nickel JB Trembucker bridge pickup be coil-split?
The shielded 4-conductor cable allows for coil-splitting or parallel wiring, depending on the chosen guitar configuration.
What music styles suit a JB Trembucker at the bridge?
This model is suited for tough blues rock, hard rock, and metal thanks to its dual coil and high output level. It can also provide more presence and sustain in pop/rock contexts.
Is the pickup protected against feedback at high volume?
A wax potting limits feedback and enhances stability at high volume. The nickel-plated cover completes this USA-made model's finish.



