---
product_id: 9530456
title: "Aguilar OBP-2SK Onboard Preamp"
brand: "aguilar"
price: "$327.53"
currency: USD
in_stock: true
reviews_count: 7
category: "Aguilar"
url: https://www.desertcart.us/products/9530456-aguilar-obp-2sk-onboard-preamp
store_origin: US
region: United States of America
---

# Fits any bass, compact design 324 hrs battery life +/-18dB bass & +/-16dB treble control Aguilar OBP-2SK Onboard Preamp

**Brand:** aguilar
**Price:** $327.53
**Availability:** ✅ In Stock

## Summary

> 🎸 Elevate your bass tone—small preamp, massive impact!

## Quick Answers

- **What is this?** Aguilar OBP-2SK Onboard Preamp by aguilar
- **How much does it cost?** $327.53 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/9530456-aguilar-obp-2sk-onboard-preamp)

## Best For

- aguilar enthusiasts

## Why This Product

- Trusted aguilar brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Powerhouse:** Ultra-compact design fits snugly into tight control cavities—upgrade your bass without compromise.
- • **Endurance That Lasts:** 324 hours of battery life means your tone stays consistent gig after gig without worry.
- • **Low Noise, High Impact:** Discrete FET input stage ensures crystal-clear sound with minimal noise, preserving your instrument’s natural vibe.
- • **Versatile Voltage Boost:** Operate at 9V or 18V for an extra 6dB of punch—customize your output to dominate any mix.
- • **Precision Tone Sculpting:** Dual concentric stacked pots let you dial in bass and treble with surgical accuracy for your signature sound.

## Overview

The Aguilar OBP-2SK Onboard Preamp is a compact, battery-powered preamp designed for bass guitars, featuring +/-18dB bass and +/-16dB treble boost/cut controls via stacked concentric pots. It boasts a low-noise discrete FET input stage, 324 hours of battery life on a single 9V battery, and fits into tight instrument cavities, delivering professional-grade tone shaping with minimal footprint.

## Description

desertcart.com The OBP-2 was designed to give bassists fat tone while being small enought fit into tight control cavities. Wire this preamp with one 9 volt battery and it will fit into just about any instrument. With +/-18dB of boost and cut at 40Hz and +/- 16dB of treble boost and cut at 6.5 kHz you have can emphasize just the right frequencies to make your bass sound great in any mix. The OBP-2SK includes a stacked treble/bass pot. Bass control: plus/minus 18 dB @ 40 Hz. Treble control: plus/minus 16 dB @ 6.5 KHz. Input impedance: 1 meg ohm Output impedance: 100 ohm 9 or 18 volts operation. Additional 6dB with 18 volts. Distortion: .019 into 10k ohm load Noise: -95 dBm unweighted. Battery life: 324 hours Wire lead length: 6.50 inches Low noise discrete FET input stage, center detent 50 K linear pots,with a dual concentric pot available. Dimensions: 0.98"W x 0.98"L x 0.59"D Warranty:Three year limited warranty. Product Description The Aguilar OBP-2 was designed to give bassists fat tone while being small enough to fit in tight spaces. Wired up with one 9V battery, it will fit into just about any instrument. With +/-18dB of boost and cut at 40Hz and +/- 16dB of treble boost and cut at 6.5kHz you can emphasize the frequencies you want to make your bass sound great in any mix. Add a second 9V for an extra 6dB boost.

Review: I'm very very satisfied because this little gem boosts the sound without changing ... - I bought this preamp for my Warwick 5strings fretless bass, loving the sound of the instrument but searching for "that kick" that I have on my Spector Legend 5 using EMG active electronics. I'm very very satisfied because this little gem boosts the sound without changing it, and now my bass really has the punch I wanted for rock and metal (yes metal!) leaving me free to return to jazz whenever I want! The only problem was on stacked potentiometers because of its 6/8mm shaft diameter; I have a 6/4mm knobs in my hand (knobs are not part of the kit so you must provide yourself)... but this is not a cons because change knobs was a matter of few secs. Five star to Aguilar OBP-2SK!
Review: Big sound at an affordable price. - This preamp lived up to the Aguilar reputation as I installed it in my 5 String Warwick and it sounds amazing. The perfect upgrade for a passive Bass!

## Features

- Wire lead length: 6.50 inches, Low noise discrete FET input stage, center detent 50 K linear pots,with a dual concentric pot available.
- Bass control:+/-18dB bass at 40Hz
- Treble control:+/- 16dB treble at 6.5kHz
- Includes stacked Treble/Bass pot.
- Battery life: 324 hours,Wired up with one 9V battery, it will fit into just about any instrument

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000P5QZN6 |
| Amplifier Type | Solid State |
| Best Sellers Rank | #147,431 in Musical Instruments ( See Top 100 in Musical Instruments ) #72 in Bass Guitar Electronics |
| Brand | Aguilar |
| Built-In Media | Instruction Manual |
| Color | Black |
| Compatible Devices | Guitar |
| Customer Reviews | 4.8 out of 5 stars 14 Reviews |
| Global Trade Identification Number | 00824599000728 |
| Item Dimensions D x W x H | 2.25"D x 2.25"W x 4.6"H |
| Item Weight | 2.72 ounces |
| Manufacturer | Aguilar |
| Mfr Part Number | OBP-2SK |
| Model Name | OBP-2SK |
| Model Number | OBP-2SK |
| Number of Bands | 2 |
| Number of Items | 1 |
| Output Wattage | 20 watts |
| Power Source | Battery Powered |
| Product Dimensions | 2.25"D x 2.25"W x 4.6"H |
| Sound Profile | Balanced, adjustable |
| Speaker Size | 6.5 inches |
| UPC | 824599000728 |
| Unit Count | 1 Count |
| Warranty Description | Three year limited, parts and labor. |

## Product Details

- **Brand:** Aguilar
- **Color:** Black
- **Compatible Devices:** Guitar
- **Material:** Plastic
- **Output Wattage:** 20 Watts

## Images

![Aguilar OBP-2SK Onboard Preamp - Image 1](https://m.media-amazon.com/images/I/5156xMVWiiL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ I'm very very satisfied because this little gem boosts the sound without changing ...
*by I***N on October 19, 2014*

I bought this preamp for my Warwick 5strings fretless bass, loving the sound of the instrument but searching for "that kick" that I have on my Spector Legend 5 using EMG active electronics. I'm very very satisfied because this little gem boosts the sound without changing it, and now my bass really has the punch I wanted for rock and metal (yes metal!) leaving me free to return to jazz whenever I want! The only problem was on stacked potentiometers because of its 6/8mm shaft diameter; I have a 6/4mm knobs in my hand (knobs are not part of the kit so you must provide yourself)... but this is not a cons because change knobs was a matter of few secs. Five star to Aguilar OBP-2SK!

### ⭐⭐⭐⭐⭐ Big sound at an affordable price.
*by S***E on December 28, 2019*

This preamp lived up to the Aguilar reputation as I installed it in my 5 String Warwick and it sounds amazing. The perfect upgrade for a passive Bass!

### ⭐⭐⭐⭐ Good sounding, resonably priced and easy to install.
*by I***M on July 18, 2016*

I'd have given this another star if it had the treble band EQ point where the OBP-1 is located. It's a bit higher than I'd normally want. I would have gone with an OBP-1, but having the ability to attenuate as well as boost is important, especially with the treble band. This is replacing a now-fried Bart Pre in an early Dingwall Voodoo Prima, and is wired at 18v for additional headroom. Easy installation, and the directions provided should be enough if you've got some basic skills & competency in soldering and wiring. My experience with this and the OBP-1 unit is that they're quiet (low noise floor) and fairly 'warm' tonally. 2x 9v batteries last 6+ months with regular practice, gigging & home rehearsal time.

## Frequently Bought Together

- Aguilar OBP-2TK Onboard Preamp
- Ernie Ball 6-String Long Scale Slinky Nickel Wound Bass Guitar Strings, 32-130 Gauge (P02838)
- Elixir Strings Nickel Plated Steel 4-String Bass Strings w NANOWEB Coating, Long Scale, Light (.045-.100)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-25*