Bass Preamps On-Board

G-BP3 , G-BP2


G-BP3 is a high-quality 3-band bass preamp, distinguished by its transparent and natural sound. G-BP3 have a dynamic and selective sound at any EQ setting. The design of the preamp uses the best components, which guarantees uncompromising sound quality. The input stage is based on a low-noise JFET transistor.
A preamp with stronger sound dynamics, recommended for fret basses, designed for any type of bass and playing technique.

The preamp model comes in three versions:

G-BP3 3-band designed to work with passive pickups, provides boost/cut for bass 40Hz +/-18dB, treble 6.5kHz +/-18dB, middle 400Hz/600Hz/800Hz +/-12dB - frequencies switched by microswitch inside the installation or by miniswitch 3-position outside. An additional microswitch enables the emulation mode of a 5m Fender cable, which allows you to change the character of the sound of the pickups. On request there is an option of an additional +10 dB Gain if the pickups are too quiet.

G-BP3A 3-band designed to work with passive pickups and active, provides boost/cut for bass 40Hz +/-15dB, treble 6.5kHz +/-15dB, middle 400Hz/600Hz/800Hz +/-9dB - frequencies switched by microswitch inside the installation or by miniswitch 3-position outside.

G-BP2 2-band version designed to work with passive pickups provides boost/cut amplification for bass 40Hz +/-18dB, treble 6.5kHz +/-18dB. An additional microswitch enables the emulation mode of a 5m Fender cable, which allows you to change the character of the sound of the pickups. On request there is an option of an additional +10 dB Gain if the pickups are too quiet.

Power consumption 2,5mA-9V/3mA-18V. 18V power supply added +6dB Headroom.
Dimensions 28mm x 33mm x 15mm.
G-BP3 preamp connection diagram


Sound samples:
Sound Samples #1

Samples recorded linearly without the use of an amplifier and loudspeaker.

Sample #1.
Preamp G-BP3 potentiometer settings:


Treble
Middle 800Hz
Bass




Info. Audio Sample Player requires acceptance of Performance and Functionality Cookies.
Sound Samples #2

Samples recorded linearly without the use of an amplifier and loudspeaker.

Sample #1.
Preamp G-BP3 potentiometer settings:


Treble
Middle 600Hz
Bass



Sample #2.
Preamp G-BP3 potentiometer settings:


Treble
Middle 600Hz
Bass



Sample #3.
Preamp G-BP3 potentiometer settings:


Treble
Middle 600Hz
Bass



Info. Audio Sample Player requires acceptance of Performance and Functionality Cookies.
Sound Samples #3


Info. Audio Sample Player requires acceptance of Performance and Functionality Cookies.
Video #1


Info. Audio Sample Player requires acceptance of Performance and Functionality Cookies.

Examples of completed installations:

Purchase options:
Purchase options:

The preamp can be purchased in 3 options.

1. Preamp and connection diagram.

2. Preamp with a set of potentiometers, switches and connection diagram.

3. Full custom preamp installation includes design preparation with the best tuning options to choose from for your bass. On request there is a solderless option using screwdriver sockets if you cannot use a soldering iron to connect the pickups, socket and batteries. Instructions for connecting the finished installation and a diagram.

To purchase a preamp please Contact