Aguilar OBP-3TK 3-Band Boost/Cut On Board Bass Preamp w/Toggle

3-band Boost/Cut Onboard Preamp for Active Basses with Separate Treble, Mid, and Bass Pots, and Black Mini-toggle Switch for Midrange Frequency Selection
Aguilar OBP-3TK 3-Band Boost/Cut On Board Bass Preamp w/Toggle image 1
Aguilar OBP-3TK 3-Band Boost/Cut On Board Bass Preamp w/Toggle image 1
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Aguilar OBP-3TK 3-Band Boost/Cut On Board Bass Preamp w/Toggle
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Active tone shaping from Aguilar!

Active electronics and preamps give you bands of EQ to shape your bass's tone. Using these active EQs lets you find your signature sound directly from your bass. Aguilar sets the standard for aftermarket onboard preamps. The Aguilar OBP-3 runs at 9V or 18V and is the most flexible onboard preamp/EQ Aguilar makes. You get three bands with 18dB boost/cut at 40Hz, 16dB of boost/cut at either 400Hz or 800Hz, and 16dB of boost/cut at 6.5kHz, giving you the fat tone-shaping you need. Expand your tonal palette with the Aguilar OBP-3.

World-famous Bass Players Choose Aguilar

Aguilar Amplification's pickups, preamps, amplifiers, effects, and cabinets are created by bass players, for bass players. Whether you're playing out live or recording in the studio, Aguilar Amplification products are designed to give you the best experience possible. World-famous bassists like John Patitucci (Chick Corea), Adam Clayton (U2), and Paul Turner (Jamiroquai) have discovered the tone, power, and reliability of Aguilar products - call Sweetwater today to find out for yourself!

Aguilar OBP-3 Features:
  • Runs at either 9V or 18V
  • 18dB boost/cut preamp at 40Hz, 16dB boost/cut at either 400Hz or 800Hz, and 16dB boost/cut at 6.5kHz
  • Includes separate Treble, Mid, and Bass pots, and black mini-toggle switch for Midrange frequency selection
Active tone shaping for your bass with the Aguilar OBP-3!

Tech Specs

Type Boost/Cut Preamp
Form Factor Onboard
Height 0.59"
Width 0.98"
Depth 0.98"
Manufacturer Part Number 510-025

Customer Reviews

Based on 2 reviews
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Major Tone

I replaced the cheap preamp in my Ibanez SR755 (Bartolini MK1 pickups, unsure of the make of the preamp) with this preamp because I trust Aguilar. For some reason, the cheap preamp ended up doubling my output volume, clipping any amp even with a -15 db pad, and making my tone controls gain controls(horrible, the craziest thing I've ever seen/heard). Long story short, I had my local wiring wizard install this, and I could not be happier. I have control over my tone again. I still get the PHAT bass sound from my B and E string. Very clear and crisp, but not edgy. I love Aguilar stuff because you can crank the high end and hear extraordinary clarity without your ears bleeding. Thank you Chris Sanders for handling my order, you made sure my order got to me expeditiously. I ordered late Sunday night, the package arrived at 8:46 AM on Tuesday (props to FedEx).Yes the preamp comes with a wiring diagram, and it took my wizard about 15 minutes to install.
Music background: 12 years of musical experience (guitar, bass, and piano)


Clean, punchy, and crisp tone quality.
See also: Aguilar, Aguilar Bass Pickups