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.

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.