

Darkglass Harmonic Booster 2.0 Clean Bass Preamp & Boost Pedal
Versatile Preamp Stompbox with Boost Circuit & Flexible 3-Band Active EQ
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Want to Click and Collect or try items at our Guildford Store?
The store is open 10am - 6pm Monday to Saturday and 11am - 5pm Sunday and bank holidays.
The stock information shows the quantity of units that are available to purchase at the Guildford store and the quantity of units that are available at our off-site Guildford warehouse. These stock levels are updated in real time.
Our Click and Collect service is available at our Guildford store from 10am - 6pm Monday to Saturday, and 11am - 5pm on Sunday. You can either choose click and collect as your delivery option online or, during store opening hours, call our sales team at 01483 456777 to place a 10% deposit.
If you have placed your order online, you will receive a confirmation email of your order and a separate follow-up text or email to confirm when your item is ready for collection.
Please do not come to the store before you have received the follow-up message, as your order may not yet be ready at the store.
If the only available stock is in our off-site warehouse it can be brought to the store location for you to try - you just need to contact the store within opening hours. Please note any requests received after 3.30pm will not arrive at the store until the following morning.
Please be aware that, unless you have paid a deposit to reserve the item, it will continue to be free, both online and in-store, for another customer to buy. Therefore we would advise you to place a 10% deposit by either using the on-line click and collect service or calling us 01483 456777.
SKU: DG-HABSTR
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Product Description
Darkglass Electronics are renowned for their high-gain distortion and fuzz stompboxes. However, before dabbling with the innovative Microtubes technology that is used in many of their current products, Darkglass launched the Harmonic Booster - their first ever pedal design. Heavily sought after, the Harmonic Booster is finally back and better than ever before!
Just like the original, the Darkglass Harmonic Booster 2.0 is primarily a clean preamp that offers plenty of tone-shaping potential with its 'Bass' and 'Treble' controls, and most notably - a sweepable parametric mid-range. Letting you find the sweet-spot, this flexible active EQ section as a whole offers mixing desk-level precision, especially in conjunction with the 'Character' control that allows you to determine how much of the EQ circuitry affects your core sound.
The 'Boost' knob delivers up to 20 dB cut/boost, but apart from simply affecting volume, the boost function also introduces extra harmonics to create a richer sound; akin to an exciter. The Darkglass Electronics Harmonic Booster 2.0 can therefore serve as an "always on" pedal that'll guarantee excellent tone no matter what you plug it into!
Here's what Darkglass Electronics says about the Harmonic Booster 2.0:
The original Harmonic Booster was Darkglass Electronics’ first ever pedal design. Now with the Harmonic Booster 2.0 the mythical product that started it all is back, but with major improvements over the original.
In the quest to design the perfect bass distortion, you first have to master the control of harmonics and filtering, which are crucial to sculpting the character and texture of a distortion circuit at will. It was when testing the first few gain and filter stages of what would later become the core of Darkglass’ overdrive technology, that it was realised that the harmonic excitation circuitry could yield amazing results on a clean signal at lower gain levels!
The result was a clean preamplifier that enhances attack and presence, while sculpting the mids for a very percussive and aggressive character and now rare examples of this early design are highly sought after. Darkglass Electronics has picked up a few tricks over the past decade, which translates into several improvements over the original design.
Aside from a new comprehensive EQ section for additional flexibility, noise performance and headroom are all vastly improved in V2.0. The unique tone-shaping engine can be controlled with the Character knob, which at minimum leaves your signal completely flat, providing absolute control from subtle to extreme enhancement. In addition, the new 3-band active equalizer, with bass and treble knobs, also features a semi-parametric mid control – a first for Darkglass!
Although Harmonic Booster 2.0 is designed to be the perfect complement to the line-up of Darkglass distortion circuits, its incredible flexibility and portability makes it the perfect one-stop solution for gigging musicians in search of a precise, yet harmonically rich clean preamplifier.
Features
- Clean Harmonic-Excitation Preamp
- Boost control - +/- 20 dB cut/boost
- 3 band Active EQ with Parametric Mid
- Character control - allows blending in the perfect amount of the tone-shaping circuitry
- Made in Finland
- Powered by regular 9V PSU (9V DC, centre -, 2,1 mm, ~30 mA current draw)