• Do not open the unit nor try to service it by yourself. Always refer to a qualified technician for service, maintenance or
upgrades. Failure to do so will void the unit's warranty
2.3 User Manual
Please read this manual carefully before making connections or operating your L1 preamplifier. After reading this manual, please
store it in an accessible place for future reference. If, after reading this manual, you feel unsure about how to make connections or
how to operate the unit, please contact your authorized dealer for assistance.
2.4 Mains supply
Before connecting the mains power cord, make sure that the mains voltage selection at the back of the unit matches your local
mains voltage.
Make sure your L1 preamplifier is disconnected from the AC wall socket in the following cases:
• When making connections (it is also recommended to disconnect the rest of the system from the AC wall socket)
• When cleaning the unit
• During thunderstorms
• When unused for a long period of time
2.5 Transport and packaging
The L1 preamplifier must always be stored in its original packaging for transportation. Doing so will ensure an optimal level of
protection of your unit. Therefore, keep all packaging in a dry and clean place for future use.
In addition, the transformer base plate must be secured for transportation to avoid excessive constraints on the silent blocks
isolating the chassis from transformer vibrations. This is done with the insertion of the security screw at the bottom of the unit.
Please refer to section 3.1.1 for further details. Do not forget to install this screw for transportation and to remove it during the
installation of the unit in its new location.
Finally we recommend to remove the adjustment spikes and to put them in the accessory box prior transportation. Vibrations
during transport may cause the adjustment spikes to move from their fully retracted position. There is risk of scratching the
installation base if the spikes are not fully retracted when installing the unit.
2.6 Cleaning
Use a soft, dry cloth for cleaning. Never use any solvent or liquids as they may damage the surface or infiltrate the unit. Please
use an ultra-soft piece of fabric designed to clean glasses for the front display area.
2.7 Maintenance and Servicing
The L1 preamplifier contains no user serviceable parts. Do not try to open, modify or repair your L1 by yourself. This will void any
warranty. Your L1 preamplifier must be checked by a qualified technician in any of the following cases:
Rev 1.0 L1 User Manual 13
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