How many dBs would 4 20dB fans create?

ScretHate

[H]ard|Gawd
Joined
Jun 5, 2001
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I'm just trying to get an idea of how loud a case with 4 panaflo L1's would be. Thanks.
 
4 = 1 doubled twice, so it'd be about 26dB.

(For every doubling, add 3 dB. Fans might be a bit different than speakers though. You'll likely get interference from the fans, and noise from other things than the fans themselves. It'll probably be higher than 26dB, but I'd bet lower than 30.)
 
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