What Fender has to say
The American Performer Mustang Bass includes the Yosemite? split-coil Mustang Bass middle pickup and a growling Yosemite single-coil Jazz Bass bridge pickup, designed for rich, expressive tones. With flat-staggered pole pieces to increase output and a shellac coating that lets the coils breathe while controlling feedback, Yosemite pickups produce dynamic sounds ideal for any musical situation. The American Performer Mustang Bass also features Greasebucket? tone circuitry that lets you shape your highs without adding bass, preserving your sound. The ?Modern C?-shaped neck sports a 9.5?-radius fingerboard that?s comfortable for almost any playing style, along with 19 medium-jumbo frets for effortless and accurate bending.