Harmonic Booster

The Harmonic Booster by Darkglass Electronics is designed to complement distortion circuits and provide flexibility and portability for gigging musicians in need of a precise and harmonically rich clean preamplifier. Its specifications include:

- 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.
- Power: 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.

It's important to note that the Harmonic Booster has a current draw of 30mA, and only a regulated 9V DC adapter with a center-negative plug should be used to avoid suboptimal noise performance and potential damage to the unit.