Darkglass Harmonic Booster HBO Bass Guitar Effect Pedal Overview:

Designed to be the perfect complement to our distortion circuits, the flexibility and portability of the Harmonic Booster is also the perfect one-stop solution for gigging musicians in search of a precise and harmonically rich clean preamplifier.

Specifications:

• 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 Output jack to the input of your amplifier or another effects pedal.
• Input:Connect your instrument or output from your pedal board to the mono jack.
• 9V DC:Only use a regulated 9V DC adapter with a center-negative plug.
• Dimensions
  • Width: 75 mm / 3
  • Length: 111 mm/ 4
  • Height: 43 mm / 1
  • 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