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Onkart Gromt Grombass Bass Distortion Pedal

Onkart Gromt Grombass Bass Distortion Pedal

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Page last updated Mar 30, 2026

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Description

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The Onkart Gromt Grombass Bass Distortion Pedal is a true gem for bassists who want to add a robust and gritty edge to their sound. Crafted in Norway, this pedal is designed specifically for bass guitars, ensuring that your low-end frequencies remain punchy and clear, even at high distortion levels. The Grombass boasts a versatile dual distortion circuit, allowing players to toggle between a smooth overdrive and a more aggressive fuzz, providing a wide range of tonal possibilities.

The pedal features intuitive controls, with knobs for level, tone, and gain, enabling precise adjustments to your sound. Whether you're aiming for a subtle growl or an all-out sonic assault, the Grombass can deliver. The true bypass switch ensures that your signal remains clean and uncolored when the pedal is not engaged. Built with high-quality components, this pedal is as reliable as it is innovative, making it a staple for any bassist's pedalboard.

Key Features:

Dual distortion circuit for versatile tonal options
Intuitive controls for level, tone, and gain
True bypass for clean signal integrity
High-quality components for durability and reliability
Designed specifically for bass guitars
Made in Norway, ensuring premium craftsmanship

Videos

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Bass Club Chicago

Onkart Gromt Grombass Distortion Pedal demo by Bass Club Chicago

Bass Club Chicago

OnkartGromt Grombass Bass Distortion - DEMO

Victor Hugo Targino

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Onkart Gromt Grombass Bass Distortion Pedal.

Features and functionality

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The Onkart Gromt Grombass includes a toggle for clipping options and high cut, with a fixed clean blend, tailored for bass but effective on guitar too.
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Use cases and applications

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The Grombass is noted for its ability to replicate muff tones while maintaining the character of the overdriven amp or pedal it follows, making it versatile for different setups.
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It's observed that the Grombass works well into both headphones and an Orange Pedal Baby, offering flexibility for both home practice and live settings.
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Comparisons

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The Grombass is compared to muffs with clean blends like those from EHX, offering a unique option for bassists and guitarists seeking muff tones.
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Nikolai Fraiture

Guitarist, Bassist

The Strokes

Verified via Photo

On 8/20/14, Ampeg let Nikolai Fraiture takeover their account for a day to take pictures of The Strokes and their show in Las Vegas, which was that night. Nikolai posted a picture of his pedalboard, and on the bottom right the Grombass can be seen.