Care And Maintenance - Classe Audio Sigma Series Owner's Manual

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Care and Maintenance

To remove dust from the cabinet of your amplifier, use a feather duster or a lint-
free soft cloth. To remove dirt and fingerprints, we recommend isopropyl alcohol
and a soft cloth. Dampen the cloth with alcohol first and then lightly clean the
surface of the amplifier with the cloth. Do not use excessive amounts of alcohol
that might drip off the cloth and into the amplifier.
Caution! At no time should liquid cleaners be applied directly to
the amplifier, as direct application of liquids may result
in damage to electronic components within the unit.