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Originally Posted by Delirious
Is putting the rad at the bottom of the box with the fans sucking air through it and out goin to hurt airflow?
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I built my airflow chamber with some noise reduction elements in mind. The noise has to bounce around before it can get out of the box and into my ears. This works really well at muffling the fan noise (which is three 120mm fans). Nothing revolutionary or original but it works well for me. Airflow is good - no issues at all.
Ideally I should have some 1" thick fiberglass board lining the interior of the chamber to further absorb noise. This was recommended by a friend who is an internationally recognized expert in acoustical engineering (he owns/operates a big international company in acoustical engineering). Unfortunately I was only able to find 1/2" thick fibreglass ceiling tiles. The thicker the fibreglass board the better for absorbing the low frequency noise. 2" thick was actually recommended but that’s getting insane.
These pics are from the earlier parts of construction. I do have a filter installed in front of the intake port at the bottom-front. It gets loaded with dust regularly but I made it easily removable and cleanable so its no problem. Once every few months I take some compressed air and blow out the entire airflow chamber (including the 2 heater cores I use in there) as the dust does build up inside.
