Bartolini Pickups and Electronics

Bartolini Pickups and Electronics is an American company who make guitar and bass pickups and electronics, such as pre-wired harnesses, pre-amps, and EQ modules. The company was founded in 1973 by Bill Bartolini, and is based in San Luis Obispo, California.
The pickups and electronics are used by luthiers such as Michael Tobias Design, Pedulla, Overwater, Roscoe, Warrior, Elrick, Sukop, Mayones, Novax, Curbow and Zon. Ibanez installs Bartolini pickups on their middle-priced guitars and basses. They are also sold through musical retailers as replacements to upgrade existing instruments.
History.
Bill Bartolini began manufacturing magnetic pickups in 1973. He first focused on quadraphonic and hexaphonic pickups, and were branded under the name "Hi-A".