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DESCRIPTION
This preamp is the result of meticulous design and testing by Wayne Jones. It is built to meet the demands of discerning bass players. Whether you’re recording, performing, or exploring new sonic possibilities, this preamp will bring out the best in your bass guitar.
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Precision Frequency Selection
Each frequency band is carefully chosen to enhance the attack and body of your instrument's sound. The bandwidth (Q) is designed to encompass the critical frequencies of each open string while avoiding interference with adjacent EQ settings. This ensures clarity, power, and a balanced tonal foundation.
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Tailored for Versatility
This preamp allows for fine-tuning to accommodate variations in pickup frequency response. Whether you're compensating for pickup characteristics or tailoring your tone for a specific musical context, this preamp provides unparalleled flexibility.
This preamp is available either pre-mounted on a Matte Black Jazz Plate or as a rear mount preamp.
Configuration - J Plate (WJA-3B)
- Stacked Volume / Pickup Blend knob
- Treble control with 6 kHz / 10 kHz switch
- Mid control with 350 Hz / 600 Hz switch
- Bass control with 44 Hz / 80 Hz switch
- Active / Passive mini toggle switch
- Runs on single 9V or dual 9V (18V) for more headroom
- Includes both 9V and 18V battery cables
Configuration - Rear Mount (WJA-3)
- Volume
- Pickup Blend
- Bass: ±15 dB @ 44 Hz or 80 Hz (selectable via PCB jumpers)
- Mid: ±15 dB @ 350 Hz, 600 Hz, 1 kHz, or 1.8 kHz (selectable via PCB jumpers and a micro switch)
- Treble: ±18 dB @ 6 kHz or 10 kHz (selectable via PCB jumpers)
- Active / Passive mini toggle switch
- Jumpers are preset to recommended settings Low 80Hz, Mid 350/600Hz, High 10kHz
- Runs on single 9V or dual 9V (18V) for more headroom
- Includes both 9V and 18V battery cables
CAVITY REQUIREMENTS
Minimum Length: 5.7" [145mm]
Minimum Width: 1.26"-1.38" [32mm-35mm]
Minimum Depth: 1.38" [35mm] (add additional 1-2mm if the battery is in the cavity)
*Wayne Jones recommends an external battery compartment for ease of changing batteries
JAZZ PLATE
Size:5.98" [152mm] Long
2.76" [70mm] Widest Point
.08" [2mm] Thick
INSTALLATION
Fits most Fender-Style Jazz Bass cavities.
Waynes Jones recommends increasing cavity depth by 1-2mm for optimal fit.
CREATED BY HIGH END AUDIO DESIGNER AND BASSIST, WAYNE JONES
MADE IN AUSTRALIA