Pricing and availability

We compare 600+ stores and found this item at 8 stores. Prices updated .

Sweetwater
5.0 (12)
$259.99
Guitar Center
4.5 (6)
$259.99
Amazon
4.5 (58)
$259.99
zZounds
5.0 (2)
$259.99
B&H
5.0 (1)
$259.99
Thomann
4.8 (52)
$231.00 $229.00 $2.00 · All time low
Gear4Music
£219.00

Average Price: $256

High-end/Boutique

$70

$201+

Price Tier

Budget

Standard

High-end

Price History

Based on price data from 7 merchants for "Darkglass Harmonic Booster 2.0". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Unleash the full potential of your bass guitar with the Darkglass Harmonic Booster 2.0. This pedal is not just about adding harmonics; it's about preserving and enhancing your instrument's natural attack and presence with a refined, low-gain preamplifier. Designed for bassists who demand clarity and definition, the Harmonic Booster allows you to fine-tune your sound to fit seamlessly into any mix, whether on stage or in the studio.

The Harmonic Booster 2.0 offers a clean, transparent foundation to build your tone. The innovative parametric midband EQ grants you the power to shape your sound with precision, adding the perfect touch of girth and punch. The Character knob is your gateway to a world of harmonic richness, enabling you to dial in just the right amount of warmth without sacrificing transparency. With its clean headroom and ultra-low-noise design, this pedal ensures that your bass lines cut through with pristine clarity.

Ideal for both live performances and studio recordings, the Darkglass Harmonic Booster 2.0 is a must-have for any bassist looking to explore new tonal landscapes while maintaining the integrity of their instrument's natural sound.

Key Features:

  • Low-gain preamplifier pedal for electric bass
  • Clean preamp to enhance attack and presence
  • Character knob for adding harmonic richness
  • 3-band EQ with parametric midband for versatile tone shaping
  • Clean headroom and ultra-low-noise design

Product specs

Type Bass Preamp with Boost
Form Factor Pedal
Analog/Digital Digital
EQ Mid Gain, Mid Frequency, Bass, Treble
Inputs 1 x 1/4"
Outputs 1 x 1/4"
Bypass Switching Buffered
Power Source 9-18V DC center negative power supply (sold separately)
Power Usage 30mA
Height 1.77"
Width 2.95"
Depth 4.37"
Weight 0.55 lbs.

FAQs

What is the primary function of the Darkglass Harmonic Booster 2.0?

The Darkglass Harmonic Booster 2.0 is designed to enhance the attack and presence of your bass tone, providing a clean boost while shaping the mids for a more percussive and aggressive character.

Is the Darkglass Harmonic Booster 2.0 suitable for live performances?

Yes, the Darkglass Harmonic Booster 2.0 is well-suited for live performances, offering a buffered bypass and robust tone-shaping controls that can enhance your bass sound in a live setting.

Can the Darkglass Harmonic Booster 2.0 be powered with a 9V power supply?

Yes, the Darkglass Harmonic Booster 2.0 can be powered with a 9V DC center-negative power supply, but it also supports up to 18V for increased headroom.

Does the Darkglass Harmonic Booster 2.0 work well with all bass types?

The Darkglass Harmonic Booster 2.0 is designed to complement a wide range of bass guitars, enhancing their natural tone without losing definition or punch.

What are the key EQ features of the Darkglass Harmonic Booster 2.0?

The Darkglass Harmonic Booster 2.0 features a 4-band EQ with controls for Mid Gain, Mid Frequency, Bass, and Treble, allowing for precise tone shaping.

Darkglass Electronics

Darkglass Electronics

Harmonic Booster Demo by Chris Kollias

Video thumbnail for Harmonic Booster Demo by Chris Kollias by Darkglass Electronics

Harmonic Booster Demo by Chris Kollias

Darkglass Electronics

Darkglass Electronics

Video thumbnail for Your Tones New Secret Weapon! - Darkglass Electronics Harmonic Booster [Demo] by Patrick Hunter

Your Tones New Secret Weapon! - Darkglass Electronics Harmonic Booster [Demo]

Patrick Hunter

Patrick Hunter

Video thumbnail for DARKGLASS HARMONIC BOOSTER - Clean Bass Preamp by Nate Navarro

DARKGLASS HARMONIC BOOSTER - Clean Bass Preamp

Nate Navarro

Nate Navarro

Video thumbnail for Darkglass Harmonic Booster Bass Demo by The Bass Channel

Darkglass Harmonic Booster Bass Demo

The Bass Channel

The Bass Channel

Video thumbnail for Darkglass Harmonic Booster - What Does it Sound Like? by Deadbeat Studios

Darkglass Harmonic Booster - What Does it Sound Like?

Deadbeat Studios

Deadbeat Studios

Video thumbnail for Darkglass Harmonic Booster - Sound Demo (no talking) by Bass Bonedo

Darkglass Harmonic Booster - Sound Demo (no talking)

Bass Bonedo

Bass Bonedo

Video thumbnail for Review: Darkglass Electronics Harmonic Booster by Joe Calderone

Review: Darkglass Electronics Harmonic Booster

Joe Calderone

Joe Calderone

Video thumbnail for Darkglass Harmonic Booster | Review | Dan Veall by Guitar Interactive Magazine

Darkglass Harmonic Booster | Review | Dan Veall

Guitar Interactive Magazine

Guitar Interactive Magazine

Reviews

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Darkglass Harmonic Booster 2.0.

Features and functionality

  • The Harmonic Booster offers excellent mid-frequency control, which is often needed in combination with other pedals for optimal sound sculpting.

    Source
  • The 'Character' dial on the Harmonic Booster is praised for its unique tonal enhancements, with some users unable to resist cranking it all the way up.

    Source

User experience

  • Owners report negligible ground noise, particularly when using a clean power supply, enhancing the pedal's performance.

    Source
  • Owners appreciate the Harmonic Booster's ability to refine sound, making it a desirable addition when paired with other Darkglass products like the Hyper Luminal.

    Source

Comparisons

  • The Harmonic Booster combined with the B3K is noted for providing a versatile sound spectrum, although a direct comparison to the B7K was not made.

    Source

Use cases and applications

  • Works well in a signal chain with punk and metal styles, adding warmth when combined with a Sansamp after the B3K.

    Source
  • The Harmonic Booster is effectively used with cab-sim into an FRFR setup, expanding tone-shaping abilities without an amp and cabinet.

    Source

Setup and maintenance

  • Delay placement before drive pedals can help mitigate accidental switch hits during performances, improving reliability in live settings.

    Source
Add

5.0 out of 5

Based on 2 Reviews and 4 Ratings

5 star
4 star
3 star
2 star
1 star
gertbakhuizen

Excellent!

Excellent pedal that I use to shape my tone together with my Strymon Sunset. For me a great combination.

m_owen_santy

Super Effective

Great pre-amp - generates glassy tones and mid EQ sculpting

Artist usage

Add artist
See how Rex Brown uses Darkglass Harmonic Booster 2.0

Rex Brown

Bassist

Pantera

...
Verified via Photo

Rex's pedal tray with the harmonic booster.

See how Marcelo Corvalán uses Darkglass Harmonic Booster 2.0

Marcelo Corvalán

Singer, Bassist

A.N.I.M.A.L.

...
Verified via YouTube

In a 2021 Rig Rundown video with Arde La Sangre, Marcelo Corvalán is shown using the Darkglass Harmonic Booster 2.0 for bass. The video, produced by Doble Bobina and available on YouTube, features Corvalán detailing his setup and demonstrating the use of this specific gear.

See how Brandon Michael uses Darkglass Harmonic Booster 2.0

Brandon Michael

Bassist

...
Verified via Instagram

Brandon Michael is confirmed to use the Darkglass Harmonic Booster 2.0, as evidenced by his Instagram post stating, "This pedalboard is sick!"

Used With

Based on how musicians on Equipboard use Darkglass Harmonic Booster 2.0, it is most commonly used with the following gear.

Community setups

Show yours
subham_bhattacharya

subham_bhattacharya

Gear IQ 85

H

hopjumponetwo

Gear IQ 108

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similar sound

While they have different controls and circuits, they’re both very similar in how they shape the tone of the bass.

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