Thomann GmbH • Hans-Thomann-Straße 1 • 96138 Burgebrach • www.thomann.de • info@thomann.de
DocID: 464518_03.06.2019
EN
User manual
This manual contains important information on the safe operation of the product.
Read and follow the safety advice and instructions given. Retain the manual for future
reference. If you pass the product on to others please include this manual.
GPA-100
Safety instructions
Intended use
This device is intended to amplify instrument signals with line level for reproduction via
loudspeaker boxes. Any other use or use under other operating conditions is consid-
ered to be improper and may result in personal injury or property damage. No liability
will be assumed for damages resulting from improper use.
Danger for children
Ensure that plastic bags, packaging, etc. are disposed of properly and are not
within reach of babies and young children. Choking hazard! Ensure that chil-
dren do not detach any small parts from the product. They could swallow the
pieces and choke!
Where to use the product
Never use the product
• outdoors
• in conditions of extreme temperature or humidity
• in extremely dusty or dirty areas
• next to a heat source or near an open fire
• at locations where the unit can become wet
• in places where the product is exposed to strong vibrations.
General handling
• To prevent damage, never use force when handling the product.
• Never immerse the product in water. Just wipe it with a clean dry cloth. Do not use
liquid cleaners such as benzene, thinners or flammable cleaning agents.
Possible hearing damage
With loudspeakers connected, the device can produce volume levels that may
cause temporary or permanent hearing impairment. Do not operate the de-
vice permanently at a high volume level. Decrease the volume level immedi-
ately if you experience ringing in your ears or hearing impairment.
Danger of electric shock caused by high voltages inside
Within the device there are areas where high voltages may be present. Never
remove any covers. There are no user-serviceable parts inside. Do not use the
device if covers, protectors or optical components are missing or damaged.
Danger of electric shock caused by short-circuit
Always use proper ready-made insulated mains cabling (power cord) with a
protective contact plug. Do not modify the mains cable or the plug. Failure to
do so could result in electric shock/death or fire. If in doubt, seek advice from
a registered electrician.
Power supply
Before connecting the device, ensure that the input voltage (AC outlet)
matches the voltage rating of the device and that the AC outlet is protected by
a residual current circuit breaker. Failure to do so could result in damage to the
device and possibly injure the user.
Unplug the device before electrical storms occur and when it is unused for long periods
of time to reduce the risk of electric shock or fire.
Features
• Compact solid state power amp pedal for electric guitar
• Lightweight Class-D technology
• Direct connection to a preamp or an effect pedal
• Master volume
• Bass, Mid and Treble controls
• Protection circuit with LED display
• Peak indicator LED
• Signal indicator LED
• Power-On indicator LED
Operating elements
1
SIGNAL
This LED indicates the presence of a signal
2
PEAK
This LED lights up on excessive input signal
3
TREBLE
Treble control
4
INPUT
Input of the device
5
VOLUME
Volume control
6
OUTPUT
Output of the device
7
BASS
Bass control
8
MID
Mid control
9
PWR/PRO Power ON indicator / Indicator for
activated protection circuit
10
Mains connector
11
ON / OFF On / Off switch
