# Pot Holes
3 + MFS
Pro Z Preamp - 4 Band
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Volume / Pickup Balance with center detent
High / Low Mid Tone Controls with center detents
Treble / Bass Tone Controls with center detents
Z-Mode Switch - 3 position
LED Battery Meter
When using your own Control Knobs: Single Pots are 6mm in diameter, Stacks are 6mm/8mm - all knobs will need a set screw
True organic sound with superb string touch response.
Extremely versatile tone selection with Z-Mode, Active Pickup Mixing and Tone Control subsystems.
Active Balance or Volume / Volume mixing system expands the useful pickup mixing combinations.
Active Tone controls have a flat frequency response in the center detents and support both subtle and more extreme sculpting.
Supports single coil and hum canceling pickups. Active pickups are not recommend with a Z-Mode preamp.
The Z-Mode switch changes how the pickups electrically respond to string vibrations. The defaults are 1) Low Z - Deeper sound, 2) Mid Z - Passive sound, 3) High Z - Brighter sound applied to both pickups. Each Z-Mode switch position can be independently programmed into 1 of 9 Z-Mode configurations for more versatility.
Replaceable High Z-Mode loading capacitors for each pickup that change the characteristic High Z-Mode peak frequency.
Low Z-Mode gain adjustments for each pickup.
Advanced LED Battery Meter informs you of your batteries charge condition.
Easy to install:
Small in size to fit in most control cavities
Pots and switches are on wires and can be positioned as needed to fit your bass body.
Battery box is not required but can be used if present.
Runs on either 9 or 18 volts and sounds the same in almost all cases.
We designed our unique electronic circuits using high quality industrial components.
We build our surface mount circuit boards in house and assemble the preamps in South Beach, Oregon, USA.
541 867 6878
4909 S Coast Hwy, STE 295
South Beach, OR. 97366
Pro Z Series