Mark Levinson 433 ユーザーズマニュアル

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Mark Levinson
DO NOT
 place the Nº433 on a thick rug or carpet or cover the 
Nº433 with a cloth, as this might prevent proper cooling. If the 
Nº433 is placed on the floor, use a thick piece of tempered glass 
to provide firm support and proper ventilation.
DO NOT
 expose the Nº433 to high temperatures, humidity, 
steam, smoke, dampness or excessive dust. Avoid installing the 
Nº433 near radiators or other heat-producing appliances.
Note
In general, better ventilation is required if the top of the Nº433 is 
hot to the 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.