Sadowsky Inboard Bass Preamp 4-Knob
The Sadowsky Onboard Bass Preamp brings the iconic Sadowsky active tone to your J-style bass with a completely prewired 4-knob system featuring master volume, pan, a Vintage Tone Control with push/pull bypass, and a stacked treble/bass EQ. Designed for passive pickups, this preamp delivers up to +18 dB of boost at 40 Hz and 4 kHz, giving you the warm, punchy low end and crisp, articulate highs that have made Sadowsky basses a studio and stage staple for decades. The VTC knob lets you roll off highs for a classic passive warmth, while the push/pull function bypasses the preamp entirely for a true passive sound. Installation is straightforward on most J-style instruments using the included metal control plate with 4-in-line or diamond mounting patterns, making this an exceptional upgrade for players who want that renowned Sadowsky tone without buying a whole new bass.
| Electronics > Controls: 4 knob layout with controls for Master Volume / Balance / Vintage Tone Control (P/P) / Treble and Bass (stacked) |
| Electronics > Pickups: Prewired onboard bass preamp for J-style basses with metal control plate; Active preamp for passive pickups |
| Electronics > Preamp / Electronics: Push/pull function at VTC knob for preamp bypass |
| Brand: Sadowsky |
| Misc > Included Accessories: Can be installed either with the included control plate or mounted through a rear control cavity |
| Notes: Frequency response 5 Hz - 50 kHz; Bass control offers +18 dB boost at 40 Hz; Treble control offers +18 dB boost at 4 kHz; Total harmonic distortion (THD) 0.18% at 1 kHz; Power supply via one 9V battery; Current draw 9 mA; Up to 870 hours battery life; Input impedance 1 Mohm; Output impedance 1 kohm |
| Warning: Defects or damage resulting from culpable or improper installation as well as the use of unsuitable accessories or tools are excluded from the guarantee. This includes soldering points that are too hot, wrong soldering tin and the resulting damage to the electronics and soldering points.; When installing a Sadowsky Onboard Preamp on a MetroExpress bass without a control plate ( (Modern, Verdine White and M/J models), the holes in the body for the potentiometers must be enlarged. This is because the factory installed potentiometers on the MetroExpress have a smaller diameter than the potentiometers on the Sadowsky Onboard Preamp. |