Darkglass Harmonic Booster Clean Bass Preamp Effects Pedal (Preloved)



Designed to be the perfect complement to our distortion circuits, the Harmonic Booster’s flexibility and portability also make it the perfect all-in-one solution for concert musicians looking for an accurate, harmonically rich, clean preamplifier.

Preloved: Mint Condition

Please note that we cannot accept Studio 19 or ZipMoney as payment. Any payment received using these methods will be automatically cancelled. This does not however include credit line payments such as Paypal pay-in-4 and Zip-Pay, these payments are accepted.

In stock Myaree 1Wangara 0Warehouse 0




  • 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 Mid frequency from 250Hz to 2.5kHz.
  • Bass +-20dB @ 80 Hz.
  • Treble +-20dB @ 5 kHz
  • Output Connect from the ¼” Output jack to the input of your amplifier or another effects pedal.
  • Input Connect your instrument or output from your pedal board to the ¼” mono jack.
  • 9V DC Only use a regulated 9V DC adapter with a center-negative plug.
  • Dimensions Width: 75 mm / 3″ Length: 111 mm/ 4¼″ Height: 43 mm / 1¾″ Weight: 250 g / 0.55 lb
  • Warning The Harmonic Booster has a current draw of 30mA. Only use a regulated 9V DC adapter with a center-negative plug. Unregulated power supplies and/or higher voltages may result in suboptimal noise performance and even damage your unit, voiding the warranty


Additional information

Weight 1 kg
Dimensions 10 × 10 × 12 cm

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