Seymour Duncan STK-J1n Classic Stack Jazz Bass

The Classic Stack Jazz Bass (STK-J1) is a vintage-voiced stack design that is a noiseless drop-in replacement for any 4-string Fender American Standard Jazz Bass.

We captured that great Jazz Bass tone from the definitive ’60s era, in a noiseless pickup design. The Classic Stack Jazz Bass is one of our most popular pickups, and with good reason. It has everything a Jazz Bass pickup should: presence without being bitter, smooth response, and a classic low-end bump. It captures the same great tone as our Vintage Jazz Bass single-coil, but without the annoying 60-cycle hum.

This bridge model is slightly overwound to make output balancing easier, for a perfect match with the Classic Stack Jazz Bass neck pickup. (NOTE: This bridge pickup is the slightly wider American-sized Jazz Bass version. If you have a Mexican Standard Jazz Bass, you will likely need to use two neck pickups, as the pickup slots are both neck-sized on that model.)

Hand built in Santa Barbara, CA, the Classic Stack for Jazz Bass uses Alnico 5 rod magnets, Forbon flatwork, 4-conductor lead wire, and is vacuum wax potted for squeal-free operation.

DCR: Neck 11.9k

Magnet: Alnico 5

Cable: 4c Shielded

Type: Passive

Please note:

– This is an authorized imported product.

– Same‑day pickup installation is available in‑store. (Guitars with complex electronics or hollow‑body instruments (full or semi‑hollow) may require the instrument to be left with us for service.)

– Plastic cases may show scuffs or minor blemishes from handling; these are not grounds for return or exchange.

– We are unable to accept price negotiations, as the listed price already reflects our best.

– The shipping fees listed on the item page are reference prices and may differ from the actual shipping cost (including Reverb and PayPal fees.) While the amounts are accurate for many countries, they may vary significantly for others.

– All customs taxes and VAT are the buyers’ responsibility. Please check out the requirements for your country.

– All items are also for sale at our physical workshop in Takadanobaba and may sell out.

– We sell only at Reverb for customers from outside Japan.

– We accept payment only through the Reverb platform.

– Compatibility: The product listed on this page is aftermarket part designed with the intent to fit representative models of Fender® and Gibson® guitars (e.g., Stratocaster®, Telecaster®, Les Paul®, SG®, etc.).

– Trademarks: “Fender,” “Gibson,” “Stratocaster,” “Les Paul,” and similar names are registered or used trademarks of Fender Musical Instruments Corporation, Gibson Brands, Inc., Ernie Ball Music Man, Inc., or The Gretsch Company.

– Disclaimer: Astronauts Guitars or Retro Tone Pickups has no affiliation with or endorsement from Fender or Gibson or their affiliates. The products listed are not genuine OEM parts but aftermarket parts. Please judge suitability and installation at your own responsibility, taking into account the specifications and individual variations of the target instrument.