AMT SS-20 manual

7.5 · 1
PDF user manual
 · 4 pages
user manualAMT SS-20
1 1

Safety precautions

CAUTION! Risk of electric shock! Danger! Even after disconnection from
mains the internal circuits can be up to 500 Volts live.
In order to avoid electric shock you must not remove
the cover the rear panel of the device. There are no
user serviceable parts inside. Repair of the device can
be carried out only by qualified experts. If the device is not used it must be
disconnected from mains.
WARNING! In order to avoid fire or electric shock the device must not be exposed to
rain or moisture. Do not let water or other liquid get inside the device. Do not place
vessels such as vases filled with liquid on top of the device.
This symbol indicates the presence of non-insulated
dangerous voltage inside the device and the danger of
electric shock.
This symbol indicates important information related to the
device maintenance and servicing contained in the
accompanying documentation.
Please read the instruction manual very carefully.
1. Keep the user's guide at hand.
2. Pay attention to warnings.
3. Follow all instructions related to device operation.
4. To clean the device, use only a dry cloth having disconnected
the device from mains prior to that.
5. You must not block or cover vent slots. When installing the
device, follow the instructions provided by the manufacturer.
6. Do not place the device near heat sources, keep it from direct
7. Lay the mains cable so that it is not stepped on and avoid its
contact with sharp corners, etc. If you use the plug or outlet for
switching the device off they should be easily accessible.
8. Use only additional devices and accessories recommended
by the manufacturer. Disconnect the device from mains in
case of thunder-storm or when the device is not in use for
prolonged time.
9. All works related to the device repair must be done only by
qualified service personnel.
10. WARNING! All service instructions are intended only for
qualified personnel in order to avoid electric shock; do not
carry out any repair works which are not described in the
instruction manual. Repair works must be carried out only
by qualified experts
Important instructions 1
Complete set 1
Introduction 2
Before you start 2
Specifications 2
Power adapter low-voltage contacts arrangement 2
Controls 3
Front panel 3
Rear panel 3
Only for qualified service personnel 3
Tube replacement 3
Connections and switching 3
Block diagram 4
References 4


¾ After transportation or storage of the product under
negative temperatures, before switching the device on it is
necessary to leave the device under room temperature in
its original package for AT LEAST 2 hours!
¾ To connect the guitar preamp to other devices use only the
cables intended for such connections.
¾ You must not use other cables types such as speaker, etc.
SWITCHING ON the guitar preamp:
¾ Switch the device on ONLY AFTER YOU HAVE DONE all
audio connections!
¾ Before connecting the preamp to mains make sure that the
case, the connecting cable and the of the power adapter
have no damages such as cuts, cracks, dents, etc. and are
¾ To switch the preamp on first insert the low-voltage
connector of the power adapter into corresponding jack on
the rear panel of the guitar preamp and only then plug the
adapter into the mains outlet.
SWITCHING OFF the guitar preamp:
¾ To switch the preamp off first disconnect the power
adapter from mains and then disconnect its low-voltage
connector from the jack on the rear panel of the guitar


The complete set includes:
1. The guitar preamp 1
2. Power adapter 1
3. Instruction manual 1
4. Packaging 1
5. Warranty card 1

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