
Darkglass Harmonic Booster 2.0 Clean Preamp
The Harmonic Booster, Darkglass Electronics' first circuit, was meant as a gain stage for distortion pedals but evolved into a powerful clean pre-amp. It allows bass players to boost volume and shape their sound without adding distortion. Each volume and EQ control provides a 20dB clean boost or cut, along with a parametric mid control. The unique Character control flatlines the signal when off but adds low-end beef and high-end sparkle when turned clockwise, enhancing tone and countering string dullness.
Features
- Boost: Flat -20dB to +20dB cut or boost
- Character: Allows blending in the perfect amount of the tone-shaping circuitry. It can be set counter-clockwise for a flatter frequency response
- Mid Gain: +-20dB @ the frequency selected by "Mid Frequency"
- Mid frequency from 250Hz to 2.5kHz
- Bass: +-20dB @ 80 Hz
- Treble: +-20dB @ 5 kHz
- Dimensions: 75x111x43 mm (2.95x4.37x1.77 in)

Darkglass Harmonic Booster 2.0 Clean Preamp
Purchase Information
Please read our FAQs page to find out more.
Refund/returning items
We do not accept order changes after the confirmation and payment of your order. After your product is delivered, Refunds are only possible if it is caused by our error (damaged/defective product, or incorrect item, etc.). To help us ascertain if your refund request is possible, please provide us with specific reasons for your refund request (reasons supported with photos where possible) via email to: enquiry@davisguitar.com – Please include your address too.
If the refund/return is approved, we shall provide you with an address for you to post the items you wish to return to. Please have the items in proper packaging and mail it back to the address we provide strictly within 2 days from receiving your items. The length of time your Refund in transit is beyond our control, your bank or credit card company may require additional period of time to process your refund and for the refund to be reflected in your account.
Shipping partners
- GrabExpress/LalaMove (Singapore only, same day delivery)
- FedEx Priority (International Orders)
Delivery typically in 1 to 3 business days to select markets in Asia, 3 to 5 business days to United States, Canada and Europe.
Taxes & Duties
The payment of duties and taxes are typically the responsibility of the receiver (International Deliveries).
Overseas shipping time and cost
Overseas shipping cost varies by buyer location and the item’s size and weight. Kindly contact enquiry@davisguitar.com for a shipping quote prior making a purchase.





