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McIntosh Ventilation

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Winston101

New Member
I have a McIntosh MA 6900, in an open front custom cabinet.

Currently, I have 3 inches of ventilation, and the manual states 6 inches, from the top of the amp to the cabinet. The amplifier does not run too hot or overheats, and it meets the side and depth requirements.

Do you think this 6 inches is absolutely necessary, or is the current 3 inches adequate? It seems like I hardly ever see Mc's with 6 inches of space above them.
 
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McIntosh's clearance recommendations are more or less based on the "worst case" ie: the highest amount of heat possible over prolonged periods being operated at near full output. Few owners actually run their equipment to such extremes in most real world situations so strict adherence to installation instructions isn't absolutely necessary for solid state equipment. Different story for tube equipment however which generates significant amounts of heat regardless of how hard it's run therefore mounting instructions should always be followed for tube units.
 
If you can't touch the heat sinks get a whisper fan to keep things cool. You may want to use the fan to pull the hot air out so you don't force dust in to the unit by having the fan blow on the units heat sinks.
 
twiiii said:
If you can't touch the heat sinks get a whisper fan to keep things cool. You may want to use the fan to pull the hot air out so you don't force dust in to the unit by having the fan blow on the units heat sinks.
Click to expand...

Unless you filter the air in, whether you push or pull has no impact on the amount of dust that wll build up.
 
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