Here's what Fender says about the Double-Tap Humbucker:
Designed by pickup guru Tim Shaw, the robust-sounding Double-Tap pickup is a revolutionary breakthrough in humbucking pickup technology. This unique, patent-applied-for design combines full-throated humbucking and articulate single-coil voices, while eliminating volume loss in single-coil mode. A special alnico 4 magnet creates an expressive, well-defined voice that’s highly musical and dynamic. A light wax potting controls runaway feedback without compromising response.
- No volume loss in single-coil mode
- Wax-potted to control feedback
- DC Resistance/Magnet Type: 8KΩ/alnico 4
- Includes installation hardware