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


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
  Remaining New Old Stock w/ 2 Modules

    HR-2.4 A/P : 1 Pickup - 3 knobs
    HR-3.4 : 2 Pickups - 3 Knobs

NEWS : Bartolini is discontinuing the old Two Module Design Preamps ( above ) and is replacing the old design with new Single Module Preamps. These New Generation Preamps only use one Module which decreases the overall size PLUS allows them to be used in even more bass guitars.

All the 3-Band Two Module Design Preamps above are being sold at a HUGE DISCOUNT and everything must go~! But this will not affect any of the 2-Band Preamps. They'll continue to be the same great preamps they've always been. It is the 3-Band preamps that are going to be discontinued and the new ones will be the same SIZE as the 2-band preamps, with just one module.

Bartolini Prewired Compact 3 Band Preamps     3 Band = Treble, Mid, and Bass
These are the new 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


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


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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