The BOB revolutionized the way we think about on-board preamps. This exciting advancement gives players the ability to change the voice of their instrument as often as they like. Simply remove three screws, swap out the old preamp and swap in the new preamp. Easily dial in another tone in between live sets, switch tunes across songs in the studio, or mix harmonies anywhere you may love to play music. For professionals or hobbyists, this swappable preamp system takes tonal versatility to the next level.
 

A True Passive Module comes with every JXB-USA Bass. Then build your collection with any of our other BOB Swappable Preamps: Bartolini, Dark Glass, John East, Aguilar, and Nordstrand. We encourage you to adventure out of your comfort zone to discover and enjoy the benefits of this tonal game-changer wherever you may have the chance to play next.