Originally posted by: Vallybally
CoolerMaster Blue LED 80 ----cfm 32 dba 25
Panaflo 80mm L1A ------------cfm 24 dba 21
This cheapo CoolerMaster here has a better ratio, but that brings to question is it legit or an exaggeration... cause these things are loud in my case.
Are you talking about the ratio of the cfm to dBa?
Assuming that is what you mean, that is not a valid way of comparing.
dBa is a log scale. So, 26dBa is twice louder than 20dBa. And 32dBa is 4 times louder than 20dBa. Adding 6 represents doubling.
But, CFM is a linear scale. To double the amount of air moved by 30CFM, you need 60CFM.
If you take that into account, the Panflo actually is better looking at those numbers. Now, whether those numbers are accurate or not is a different story that I don't know anything about.
Edit:
25dBa is 1.58 times louder than 21dBa.
32CFM only moves 1.33 times what 24CFM moves.