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which would you pick?

  • 13-07-2004 8:23pm
    #1
    davidclayton
    Registered Users, Registered Users 2 Posts: 1,218 ✭✭✭


    i'm looking at getting a case fan [or 2]
    there is a 120mm on jes that is rated at 17db.
    that rocks.

    but would it be even quiter if i got 2 x 9db 80mm fans?
    the airflow works out about the same.

    dave


Comments

  • #2
    Capt'n Midnight
    Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 94,360 Mod ✭✭✭✭Capt'n Midnight


    dB = decibel

    so 9dB+9dB =12dB - so 5dB quieter than 17dB
    (10dB sounds twice as loud)

    I'm guessing that means 12dBm
    Also depends if they both used real dB or one/both used "marketing dB's"

    Note: if a pair of fans are close in speed the beat frequency can give rise to a low droning sound.

    For low noise Large Slow fans are what you want.


  • #3
    davidclayton
    Registered Users, Registered Users 2 Posts: 1,218 ✭✭✭davidclayton


    i'm thinking i'll be able to get away with one of these:

    http://www.jes-computer.de/catalog/product_info.php?cPath=174_23&products_id=14994

    ordering now!


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