Sadowsky Onboard Bass Preamp with Mid Boost (4-Knob System, no Control Plate) Sadowsky Strap The RockBoard StageTuner ST-01 combines

The RockBoard StageTuner ST-01 combines all aspects that musicians seek in a chromatic pedal tuner

MM-style bass pickup set

connected effects pedals are protected in case of a power surge

3 CINQUE MAX pedalboard

Sadowsky Onboard Bass Preamp with Mid Boost (4-Knob System, no Control Plate) Sadowsky Strap The RockBoard StageTuner ST-01 combinesThe Sadowsky Onboard Bass Preamp (4 Knob System) is a pre wired system that offers the same controls and legendary active preamp as all Sadowsky basses. The preamp is designed for installation in most basses with a 4 knob layout. Newer active models with a 4 knob layout, a side mounted output jack, and a battery compartment typically require no modifications. For passive instruments, the only necessary change is to relocate the output jack to the side