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Ventilation • DO select a dry, well-ventilated location out of direct sunlight.
• DO allow at least a 2 to 3-inch (5 to 8cm) clearance above the
Nº432/431 for proper heat dissipation through air circulation.
The Nº432/431 is designed for passive, convection cooling.
• DO NOT obstruct the ventilation holes on the top and bottom
of the Nº432/431 or reduce airflow through the Nº432/431.
• DO NOT place the Nº432/431 on a thick rug or carpet or
cover the Nº432/431 with a cloth, as this might prevent proper
cooling. If the Nº432/431 is placed on the floor, use a thick
piece of tempered glass to provide firm support and proper
ventilation.
• DO NOT expose the Nº432/431 to high temperatures,
humidity, steam, smoke, dampness, or excessive dust. Avoid
installing the Nº432/431 near radiators and other heat-producing
appliances.
Note In general, better ventilation is required if the top of the
Nº432/431 is too hot to touch when the power amplifier is
“idle.” Open equipment racks provide the best ventilation for
power amplifiers. However, if the power amplifier must be
placed in a cabinet that restricts airflow, consider drilling holes
in the shelf underneath the power amplifier to improve
ventilation or using fans to increase air circulation.
Power Requirements
When shipped, the Nº432/431 is configured for 100V, 120V, 220V,
230V or 240V AC power operation at 50 or 60Hz based on the
country for which it is manufactured. Before operating the
Nº432/431, make sure the ~ac mains connector label indicates the
correct operating voltage for the current location.
Caution! Do not attempt to adjust the operating voltage. Consult an
authorized Mark Levinson dealer if the operating voltage is
incorrect or if the operating voltage must be changed for
relocation purposes.
Be advised that different operating voltages may require the
use of different power cords and/or attachment plugs. Contact
an authorized Mark Levinson dealer for assistance.