Aguilar OBP-3 2-Pickup 5-Knob 2-Switch 3-Band Vol - Vol - Mid - Treb - Bass - Mid Sw - A/P Sw

SKU:BBG 1450


  • 3-Band: 2-Pickup, 5-Knob, 2-Switch
  • Vol - Vol - Treb - Bass - Mid Switch - A/P Switch
In Stock - Made to Order

We build and test our pre-wired preamp assemblies by hand. These usually ship within a few days. Please contact us first if you have a tight deadline. We will do our best to accommodate you.


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Control Configuration

  1. Volume
  2. Volume
  3. Treble
  4. Bass
  5. Mid Switch
  6. Active/Passive Switch


The Aguilar OBP-3 was built from the ground up to be the ultimate source of full-bodied tone, transparency, and versatility for your bass.

Three bands of boost/cut and a selectable midrange frequency provides flexibility to dial in just the right tone. The treble control delivers up to 16dB of boost/cut at 6.5Hz and captures the dynamic of a "Passive Tone Control" when rolled off. The powerful midrange control offers user selectable frequencies of 400 or 800Hz, each with a full 16dB boost/cut capability. The midrange retains constant bandwidth in any setting so there is no "muddy" frequency overlap. The bass control features a boost/cut of up to 18dB at 40Hz, adding Aguilar's signature thickness to any instrument.

The Aguilar OBP-3 is compatible with most major manufacturer’s pickups both active such as EMG®, Warwick® MEC, and passive as we build them in house and impedance match the controls, and its small size makes it an easy retrofit in almost any bass. Combining high headroom and low noise, the OBP-3 is unmatched in providing tonal flexibility while retaining the true character of any bass!

Tonally these preamps are aggressive, clear, transparent and have emphasis with the low and low midrange being warm, and with the top end 'presence' like. These preamps do not have gain control onboard.

Use of 9v or 18v power is possible as we build the prewires in house to suit your power requirements. 18v grants an additional 6dB of headroom.

Technical Specifications

  • Bass: +/- 18dB @ 40Hz
  • Midrange: +/- 16 dB @ 400Hz or 800 Hz. User selectable frequency center.
  • Treble: +/- 16dB @ 6.5 KHz
  • Input Impedance: 1 Mega Ohm
  • Output Impedance: 100 Ohm
  • Battery life: Estimated 324 hours


Rate and Review this item
Verified Buyer
Aguilar Obp3 preamp
By Jeffrie James from on 10/3/2016
I placed the preamp in a Xotic XJ-1t bass. I matched this preamp with the corresponding Aguilar HC5 pickups. The pickups and preamp work well together however, there is some noise within either the circuit or the pickups. I had the noise issue prior to getting the preamp installed so I really can't determine if it's the pickups or the preamp. I did notice some top end noise from the preamp. There is an open end on the pickups and the preamp. I find both the preamp and pickups lacking in the low mids . The high mids are focused but the highs are somewhat brittle.