![](https://drmusic.es/8831-medium_default/sadowsky-spb-2-outboard-preamp.jpg)
![](https://drmusic.es/8831-small_default/sadowsky-spb-2-outboard-preamp.jpg)
Reference: SADPREAMDI
The legendary Sadowsky SBP-2 Outboard Bass Preamp/DI Pedal contains the same circuitry that you will find in any Sadowsky bass.
The circuit is housed in a very compact, resistant metal box. Simply plug in your bass and route the signal to your amplifier.
The controls are Volume, Bass and Treble. The EQ is just for enhancement. There is a switch to activate the preamp and an LED to indicate that the battery is low (if not using a power supply).
This is an ideal preamp for vintage basses where you need to improve the sound but don't want to do any work on them. It works perfectly with both passive and active basses where the included electronics can be bypassed. It also works really well with double bass pickups.
Specifications:
Frequency Response: 5Hz-50kHz
Power Source: 9V Battery or AC adapter
Battery draw: Around 3mA
Battery Life: 150 Hours
Bass Control: +18dB Boost @ 40Hz
Treble Control: +18dB Boost @ 4kHz
Total Harmonic Distortion: 0.18% @ 1kHz