The Sadowsky SBP-1 Bass Preamp offers bassists the same electronics that has been built into every Sadowsky bass for over 30 years. With the flexible combination of preamp and DI box, the pedal can be used in the effects setup in front of the amplifier or to connect your bass directly to a mixer or the PA. The control options are kept simple with Volume, Treble and Bass, Treble and Bass only work as a boost. The SBP-1 Bass Preamp is ideal for upgrading old vintage instruments where you don't want to change the original electronics. The best results are achieved with passive basses or circuits with active pickups, where you can bypass the active electronics.