Harley Benton GPA-100 User manual

Thomann GmbH • Hans-Thomann-Straße 1 • 96138 Burgebrach • www.thomann.de • [email protected] DocID: 464518_11.01.2021
EN
Quick start guide
This quick start guide contains important information on the safe operation of the
product. Read and follow the safety advice and instructions given. Retain the quick
start guide for future reference. If you pass the product on to others please include
this quick start guide.
GPA-100
Features
• Compact solid state power amp pedal for electric guitar
• Lightweight Class-D technology
• Direct connection to a preamp or an eect pedal
• Master volume
• Bass, Mid and Treble controls
• Protection circuit with LED display
• Peak indicator LED
• Signal indicator LED
• Power-On indicator LED
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 considered
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 re
• 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 ammable 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 re. If in doubt, seek advice from a
registered electrician.
Power supply
Before connecting the device, ensure that the input voltage (AC outlet) match-
es the voltage rating of the device and that the AC outlet is protected by a re-
sidual 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 re.
Possible staining
The plasticiser contained in the rubber feet of this product may possibly react with
the coating of your parquet, linoleum, laminate or PVC oor and after some time
cause permanent dark stains. In case of doubt, do not put the rubber feet directly
on the oor, but use felt-pad oor protectors or a carpet.
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/O switch












Thomann GmbH • Hans-Thomann-Straße 1 • 96138 Burgebrach • www.thomann.de • [email protected] DocID: 464518_11.01.2021
For the transport and protective packaging, environmentally friendly materials
have been chosen that can be supplied to normal recycling. Ensure that plastic
bags, packaging, etc. are properly disposed of. Do not just dispose of these ma-
terials with your normal household waste, but make sure that they are collected for recy-
cling. Please follow the notes and markings on the packaging.
This product is subject to the European Waste Electrical and Electronic Equip-
ment Directive (WEEE) in its currently valid version. Do not dispose of your old
device with your normal household waste. Dispose of this product through an
approved waste disposal rm or through your local waste facility. Comply with
the rules and regulations that apply in your country. If in doubt, consult your local waste
disposal facility.
Using the product
1. To power the device, connect the mains socket of the device to a properly wired
mains socket which provides the voltage specied in the technical specications
via the supplied mains cable.
2. Connect the line level output (0.775V) of the guitar preamp or eects unit to
be used to the INPUT jack with a 1/4" jack cable. Connecting an electric guitar
directly to the input leads only to a signicantly weaker output power signal.
3. Connect a guitar speaker cabinet that corresponds to the impedance and load
capacity specied in the technical specications to the OUTPUT jack using a 1/4"
speaker cable.
4. Set the power switch to the ON position to turn on the power. The PWR/PRO
LED will light up green.
5. Play the instrument. The SIGNAL LED indicates a present signal. If the PEAK LED
is lit, the input signal is too high and there is an unpleasant distortion due to
overload. In this case, reduce the output signal of the device connected to the
input to such an extent that the PEAK LED no longer lights up.
6. To adjust the volume, turn the VOLUME control to the desired position.
7. Use the BASS control to adjust the desired low frequency portion of the overall
signal. The MID knob controls the mids and the TREBLE knob controls the high
frequencies.
8. A built-in protection circuit works to protect the device and components con-
nected to it. When it triggers, the PWR / PRO LED turns red and the output turns
o. In this case, switch o the device via the on / o switch and switch it on again
a minute later. If the PWR / PRO LED still lights red, please contact our service.
9. After use, turn the power switch to the OFF position to turn o the power. If the
unit is not going to be used for a longer time, unplug the power cord from the
wall outlet.
Possible hearing damage
With loudspeakers connected, the device can produce volume lev-
els that may cause temporary or permanent hearing impairment.
Do not operate the device permanently at a high volume level.
Decrease the volume level immediately if you experience ringing in your
ears or hearing impairment.
Technical specications
Output power 100W @ 8Ω
190W @ 4Ω
Input 1/4" jack
Output 1/4" jack
Input sensitivity 0.775V±10%
Input impedance balanced: 20kΩ
unbalanced: 10 kΩ
Power amplier damping factor >80
Supply voltage 230V ~ 50Hz
Dimensions (W×H×D) 162mm×100mm×64mm
Weight 0.8kg
GPA-100
EN