Volume

Z-Mode 3 way toggle switch

Mid Range Tone Control / Balance with center detents

Treble / Bass Tone Controls with center detents

Advanced LED Battery Meter

Passive Type Tone

Output Jack on wires for Bass Side Body Mounting

 

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 pickup mixing systems expand 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.

Passive Type Tone control is a high frequency roll off like the 3rd knob in a passive Jazz Bass.

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 in a standard Jazz Bass body with simple hand tools but will require limited soldering to the jack if the body connection to the jack uses a drilled hole or when wiring to a battery box.

Battery box is not required but can be used if present.

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.