Darkglass Electronics Harmonic Booster User manual

USER MANUAL

Harmonic Booster
Clean Preamplifier
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.
Controls
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.
Warning
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.
Warranty
To activate the warranty, we encourage you to register your
product on: http://mypedal.darkglass.com and enter the serial
number on the back of your pedal.
Please contact us via email [email protected] before
shipping a product to us.
Technical Specifications
Input Impedance 470 kΩ
Output Impedance 1 kΩ
Current Consumption 30mA
Voltage 9-18 V DC Center negative
Dimensions
Width 75 mm (2.95 in)
Height 111 mm (4.37 in)
Depth 43 mm (1,77 in)
Weight 250 g (0.55 lb)

Harmonic Booster
Clean Preamplifier
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.
Controls
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.
Warning
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.
Warranty
To activate the warranty, we encourage you to register your
product on: http://mypedal.darkglass.com and enter the serial
number on the back of your pedal.
Please contact us via email [email protected] before
shipping a product to us.
Technical Specifications
Input Impedance 470 kΩ
Output Impedance 1 kΩ
Current Consumption 30mA
Voltage 9-18 V DC Center negative
Dimensions
Width 75 mm (2.95 in)
Height 111 mm (4.37 in)
Depth 43 mm (1,77 in)
Weight 250 g (0.55 lb)

Disclaimer
In the interest of continuous improvement, specifications are subject to
change without notice. If you have any questions, please don’t hesitate to
contact us at www.darkglass.com
The manufacturer claims that the above product fulfils the requirements as
set by EN55013, EN55020, EN60555-2, EN60555-3, RoHS, WEEE.
1176®, and SSL® are registered trademarks of their respective companies.
Names of factory modes are intended for descriptive purposes only and
should not be construed as an endorsement or affiliation with the companies
or products named.
EMC / EMI
This equipment has been tested and found to comply with the limits for a
Class B Digital device, pursuant to part 15 of the FCC rules. These limits are
designed to provide reasonable protection against harmful interference in
residential installations.
This equipment generates, uses and can radiate radio frequency energy and,
if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. There is no guarantee that
interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the
following measures:
·Reorient or relocate the receiving antenna.
·Increase the separation between the equipment and receiver.
·Connect the equipment to an outlet on a circuit different from that to which
the receiver is connected.
·Consult the dealer or an experienced radio/TV technician for help.

DARKGLASS ELECTRONICS OY.
Helsinki, Finland
www.darkglass.com