
Anthony Easton
The El Oso by Heavy Electronics is a bass distortion pedal designed for heavy tone and simplicity. It features three intuitive knobs: Level, Mix, and Gain. The Mix knob blends the distortion with the dry signal, offering 100% dry or 100% distorted output when turned to the extreme positions. The distortion top-end is rolled off and contoured to reduce harshness commonly found in bass distortion pedals.
Technical Specifications:
- Hand-made in Minneapolis, MN
- Voiced openly for guitar, bass, or any instrument
- True bypass switching & minimum length leads
- PCB designed, printed, and populated by Heavy Electronics
- 1 oz. copper 1/16” single point mounted PCB
- 24mm large size pots for maximum reliability
- Flying leads to all potentiometers and jacks
- Neutrik or Switchcraft 1/4 inch signal jacks
- Sealed metal LED housing with flying leads
- 9V 200MA power for maximum compatibility
- Powder-coated die-cast aluminum enclosure
- Dual quality-control testing (both audio & build)
- Lifetime warranty
- Upgrades, repairs, and mods available for life
The El Oso is designed to blend roaring low-end gain with the dry signal, delivering both thump and gain to the input of the amplifier. The mix knob has a significant effect, allowing users to create a deep palette of bass distortion tones. The pedal is suitable for stage-performing bassists and offers a simple operation, enabling users to find their desired tone within seconds.
The pedal is available at a street price of $149 and comes with excellent customer service ready to help. Users can inquire about custom options, colors, and graphics. Additionally, upgrades, repairs, and mods are available for the lifetime of the pedal.
Watch the latest video demos and reviews for the El Oso from YouTube. Stompbx updates this every six months to reflect the most popular reviewers and guitar pedal demos for each pedal.

Below are live Reverb listings for the Heavy Electronics El Oso from Reverb. Stompbx automatically aggregates current offers to give you a quick look at available models, conditions, and prices. Perfect for comparing options and making an informed purchase.

Very Good
$95

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Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton