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Onboard Bass Guitar PreAmps
>>> Electronics >> Wiring Components > Onboard Bass Guitar PreAmps


Aguilar Onboard PreAmp Modules and Prewired Kits
Choice of buying just the preamp module or a large variety of prewired kits.

Aguilar OBP-1 Two-Band Onboard PreAmp Module and Prewired Kits
   The OBP-1 is a boost-only design that gives you the tone-shaping benefits
   of active electronics without losing the inherent sound of the instrument.

Aguilar OBP-2 Two-Band Onboard PreAmp Module and Prewired Kits
   The OBP-2 is a boost and cut design that gives bassists fat tone while being
   small enough to fit into tight control cavities.

Aguilar OBP-3 Three-Band Onboard Preamp Module and Prewired Kits
   The OBP-3 is a boost and cut design that gives you the ultimate source of
   full-bodied tone, transparency, and versatility for your bass.


Bartolini 2 Band Preamp Circuits
  2 Band = Treble and Bass

    HR-2.2: 1 Pickup - 2 Knobs
    HR-2.3: 1 Pickup - 3 Knobs
    HR-3.3: 2 Pickups - 3 Knobs
    HR-4.2: 2 Pickups - 4 Knobs
    HR-4.5: 2 Pickups - 4 Knobs
Bartolini 3 Band Preamps
  All Old Stock 2 Module Preamps are GONE


I have left the old 3-Band 2-module page active just in case anyone can find any use for the images and information. The 3-Band Single Module Preamps listed below are available here

Bartolini Prewired Compact 3 Band Preamps     3 Band = Treble, Mid, and Bass
These are the new for 2014 Bartolini compact version of their NTMB 3-band onboard bass preamps. The new system eliminates the second module and now have only the single lower profile module measuring only 1-3/4" x 1" x 1/2" making it more easily adaptable to many more bass control cavities.

HR-2.4 Harness with Active-Passive Push-Pull : 1 Pickup - 3 knob configuration
HR-2.5 Harness with Active-Passive Push-Pull : 1 Pickup - 4 knob configuration
HR-3.4 Harness without Active-Passive Push-Pull : 2 Pickups - 3 Knob configuration
HR-4.6 Harness with Active-Passive Push-Pull : 2 Pickups - 4 knob configuration
HR-4.6 Harness without Active-Passive Push-Pull : 2 Pickups - 4 knob configuration
HR-4.7 Harness with Active-Passive Push-Pull : 2 Pickups - 4 Knobs - 1 Switch
HR-4.7 Harness without Active-Passive Push-Pull : 2 Pickups - 4 Knobs - 1 Switch
HR-5.2 Harness with Active-Passive Push-Pull : 2 Pickups - 5 Knob configuration
HR-5.2 Harness without Active-Passive Push-Pull : 2 Pickups - 5 Knob configuration
HR-5.3 Harness with Active-Passive Push-Pull : 2 Pickups - 5 Knobs - 1 Switch
HR-5.4 Harness with Active-Passive Push-Pull : 2 Pickups - 5 Knobs - 1 Switch
HR-5.4 Harness without Active-Passive Push-Pull : 2 Pickups - 5 Knobs - 1 Switch

Bartolini Pre-Amp Modules, Buffers, & Filters - Stand alone without prewired harnesses.
NTMB+ GF and NTMB+ GFL Modules
   3-Band Tone Control Pre-amp with fully
   independent bass, midrange, and treble.

AGB-918-2 Adjustable Gain Buffer
   Operates as a buffer with an adjustable low
   noise gain for any of our onboard Pre-Amps.



Delano Prewired On-Board Bass PreAmp Circuits
Sonar preamps come with prewired tone pots. Volume pot (push-pull) and balance pot are enclosed.
Sonar 2-Band Preamp - 2 Pickups - 4 Knob configuration
Sonar 3-Band Preamp - 2 Pickups - 5 Knob configuration
Sonar 3MS 3-Band Preamp - 2 Pickups - 5 Knob configuration
Sonar 3MS/E 3-Band Preamp - 2 Pickups - 5 Knob : 1 Switch configuration


Glockenklang On-Board Bass Guitar PreAmp Circuits
2-Band Preamp - 2 Pickups - 3 Knobs         3-Band Preamp - 2 Pickups - 4 Knobs
2-Band Preamp - 2 Pickups - 4 Knobs         3-Band Preamp - 2 Pickups - 5 Knobs


Nordstrand   On-Board Bass Guitar PreAmp Circuits
2 Band Preamps include preamp module, standard jack, battery clip and the pots listed.
2 Band Music Man Style Preamp Harness for that 70s Music Man StingRay tone.
3 Band Preamps include preamp module, standard jack, battery clip and the pots listed.
Nordstrand Wiring Diagrams : For wiring preamps and specific potentiometers, click here.


Seymour Duncan   On-Board Bass Guitar PreAmp Circuits
STC-2A : 2 Band Tone Circuit for Active Pickups
STC-3A : 3 Band Tone Circuit for Active Pickups
STC-3P : 3 Band Tone Circuit for Passive Pickups


Stellartone   Bass Guitar Mult-Position Tone Control
ToneStyler for Passive Bass Guitars - no batteries required.


Wiring Tips & Tricks
If you're using a preamp that requires the small 2-prong plugs (like a computer jumper) to connect the pickups, an easy source is one snipped off of a dead portable phone battery. Solder it into the line and use heat shrink tubing over the joints. ~ from Hambone


Articles & Discussions

Aguilar vs. Glockenklang Onboard Preamp - Discussion at TalkBass.com


>>> Electronics >> Wiring Components > Onboard Bass Guitar PreAmps

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