Detail 01
TB (Trembucker) spacing
Pole pieces are spread wider than a standard humbucker to line up under Fender-spaced tremolo bridges.
Product detailSKU #1274034493463
Seymour DuncanTB-4 JB Reverse Pickup Black Creme
Independent shopping perspective
The Korena take
Bridge-position humbucker in Trembucker spacing, sized for the wider string spread of Fender-style tremolo bridges. For guitarists swapping a bridge pickup on a trem-equipped guitar.
Strong match
Who this is for
- Trem-bridge guitars where standard humbuckers miss the outer strings
- Adding a hotter bridge voice than a stock pickup
- Players comfortable soldering or paying a tech for install
Consider the trade-offs
When to look elsewhere
- Guitars with narrow string spacing — pole pieces will sit off-center
- Neck-position replacements; this is voiced for bridge
- Anyone wanting a drop-in solderless swap
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Bridge position
Wound hotter to compensate for lower string movement near the bridge, so output stays even across positions.
Detail 03
Humbucker
Two coils wired to cancel hum, so high-gain amps and single-coil noise problems stay quieter.
Detail 04
Black and creme bobbins
The zebra look shows only with the cover off. Aesthetic choice, no effect on tone.
Final check
Know before you order
- 01Measure your bridge string spacing first — standard spacing needs the non-TB version
- 02Pickup only; no pots, switches, or mounting rings included
- 03Requires soldering into your existing harness, or a tech visit
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Will this fit a standard humbucker route?
Yes, the housing is standard humbucker size. The difference is pole-piece spacing inside, not the outer dimensions, so it mounts in normal humbucker routes and rings.
02Do I need a Trembucker or a standard JB?
Measure the distance across your outer strings at the bridge pickup. Wider Fender-style tremolo spacing calls for the TB version; Gibson-style spacing calls for the standard.
03Does it come with wiring instructions?
Seymour Duncan publishes wiring diagrams for their pickups. Colour-code conventions differ between makers, so check the diagram before connecting to a different brand's harness.
04Can I use it in the neck position?
It will physically fit, but it's wound for the bridge. In the neck it tends to sound thick and loose since string movement is much greater there.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color
- Black
