Sadowsky Onboard Bass Preamp MB4K

Electronics Replacement Kit for Electric Bass

• Pre-wired onboard bass preamp with mid boost function for J-style basses with a metal control plate
• Active preamp for passive pickups
• 4-knob layout with controls for master volume / balance / vintage tone control (P/P) / treble and bass (tandem) / mid boost switch
• Push/pull function on the VTC control for preamp bypass
• Frequency range 5 Hz – 50 kHz
• Bass control provides +18 dB boost at 40 Hz
• Mid Boost switch provides +10.6 dB boost at
• 500 Hz
• Treble control offers +18 dB boost at 4 kHz
• Total harmonic distortion (THD) 0.18% at 1 kHz
• Power supply with a 9V battery
• Current consumption: 9 mA
• Up to 870 hours of battery life
• Input impedance: 1 MOhm
• Output impedance: 1 kOhm
• Includes 0.1 µF replacement capacitor for the VTC module for better treble attenuation when used with Sadowsky Soapbar pickups.

Note: Can be mounted either with the control plate or through an electronics compartment.