Subwoofer waves and resonance

Discussion in 'General Electronics Chat' started by harryotto, Jul 30, 2010.

  1. harryotto

    Thread Starter New Member

    Jul 30, 2010
    1
    0
    Subwoofer issues.

    Trying to tune a 6" PVC pipe to 46hz.

    Anyone know if I could work of a 1/2 wave so I can load the rear with 1.87 meters (in lieu of 3.74m)?

    If I load the front with a 1/3 of that, can the tube be run efficiently out of phase?

    (5.5" woofer with a serious x-max being mounted in a 3 to 1 length configuration.)
     
  2. timrobbins

    Active Member

    Aug 29, 2009
    318
    16
    harryotto,

    Are you trying something new for experimentation purposes only? Or are you trying to apply a particular ported enclosure design?

    I have always found the http://www.diysubwoofers.org/ website by Brian Steele a great resource over the years.

    Ciao, Tim
     
  3. Audioguru

    New Member

    Dec 20, 2007
    9,411
    896
    A little 5.5" speaker tuned with PVC pipes makes a bongo drum speaker. Boom, boom.
    Bass sounds in music are more than just a single frequency.
    The 5.5" speaker is too small to be a sub-woofer and is too small to be a woofer.
    If it is mounted in an enclosure designed for its spec's then it will go down to about 90Hz.

    A woofer is 8" or larger so it can produce frequencies down to about 50Hz.
    A sub-woofer is 10" or larger so it can produce frequencies down to 20Hz.
     
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