Darkglass Electronics Harmonic Booster Clean Bass Preamp
- 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
- DIMENSIONS: 75x111x43 mm (2.95x4.37x1.77 in)
The Harmonic Booster has a current draw of 30mA. Only use a regulated 9V DC adapter with a center-negative plug. Due to ecological reasons, it does not accept batteries. Unregulated power supplies and/or higher voltages may result in suboptimal noise performance and even damage your unit, voiding the warranty.