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My Biggest Fan

All my power amps get a compressor assist clean-blow out yearly. Some also have dampener, directional baffles that direct air flow across heat sinks and other components. They can deteriorate over time or become dislodged and need to be checked.
You should always clean the fan blades as well, dirty ones shorten the lifespan and can cause unbalanced noise/bearing issues.
Stored electronic components can be subject to potentiometer issues if not in low humidity, temp controlled environments, they can oxidize and cause intermittent signal path issues.
 
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Fan has been added at some point we have established;)

fan2.jpg
 
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The Classic 400 has always had a factory installed, always on fan. This goes back to revision A docs. IMO, it's needed to meet safety agency approvals as there's a lot of heat generated even idling (out of standby)
 
The Classic 400 has always had a factory installed, always on fan. This goes back to revision A docs. IMO, it's needed to meet safety agency approvals as there's a lot of heat generated even idling (out of standby)
Ok so the member that bought one new without a fan had an early model? @Thornton Davis ? I've heard of a couple of people with fanless models now hence my confusion.....
 
Ok so the member that bought one new without a fan had an early model? @Thornton Davis ? I've heard of a couple of people with fanless models now hence my confusion.....

Good question, perhaps rev. A was the first that had a safety agency approval and there was an earlier revision. I don't recall ever seeing one without a fan, but I haven't seen many regardless.
 

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