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Woofer Cooling [message #47944] Tue, 11 October 2005 06:17 Go to next message
Rajeev is currently offline  Rajeev
Messages: 18
Registered: May 2009
Chancellor
Dear Wayne,
I read about the woofer cooling technique you have developed , can we use similar method for other woofers too , like this they will remain cooler and that too with increased power handling , will an alinimum finned heat sink glued to the woofer magnet help ??
Rajeev

Re: Woofer Cooling [message #47945 is a reply to message #47944] Tue, 11 October 2005 07:24 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18787
Registered: January 2001
Illuminati (33rd Degree)

The cooling device isn't limited to basshorns by any means. It can be installed on just about any loudspeaker to improve power handling. You can mount it to an exterior cabinet panel or you can make a bracket to support the device inside.

Woofer Heat Exchanger

The thing that is most important is to have as much surface area contact as possible with the pole piece, and in many woofers, the best place to do this is through the cooling vent. Eminence woofers, for example, have a center pole piece made of steel and an aluminum tube inserted makes a much better conductor of heat. By inserting it completely, there is a large contact area between the pole piece and the cooling plug, and this allows a good interface. Heat is carried away effectively, and radiated by the attached plate.

  • LAB12 destructive test
  • Woofer cooling device - Test Cycle with Heat Exchanger Installed


  • Re: Woofer Cooling [message #47949 is a reply to message #47945] Tue, 11 October 2005 13:39 Go to previous messageGo to next message
    Crazy Dave is currently offline  Crazy Dave
    Messages: 67
    Registered: May 2009
    Viscount
    Hi Wayne,

    Would it work for a compression driver? Could you lower the low freqency cutoff with it?

    Just wondering!

    Dave

    Re: Woofer Cooling [message #47954 is a reply to message #47949] Tue, 11 October 2005 21:53 Go to previous messageGo to next message
    Wayne Parham is currently offline  Wayne Parham
    Messages: 18787
    Registered: January 2001
    Illuminati (33rd Degree)

    The priniciples should work with a compresson driver, but unless its cooled with a vent, no cooling plug could be adapted. The aluminum parts to conduct, radiate and dissipate heat would have to be designed in from the start.


    Re: Woofer Cooling [message #47958 is a reply to message #47954] Wed, 12 October 2005 01:50 Go to previous messageGo to next message
    Rajeev is currently offline  Rajeev
    Messages: 18
    Registered: May 2009
    Chancellor
    Would the aluminium plug the air hole of the magnet ? or it has a smaller hole in the centre ??

    Re: Woofer Cooling [message #47961 is a reply to message #47958] Wed, 12 October 2005 04:03 Go to previous messageGo to next message
    Wayne Parham is currently offline  Wayne Parham
    Messages: 18787
    Registered: January 2001
    Illuminati (33rd Degree)

    The cooling plug is hollow and has cross-drilled holes for airflow.



    Re: Woofer Cooling [message #47965 is a reply to message #47954] Wed, 12 October 2005 10:03 Go to previous message
    Crazy Dave is currently offline  Crazy Dave
    Messages: 67
    Registered: May 2009
    Viscount
    So you would need a groud-up design. Well it was an interesting thought. The power of a 2" exit with the dispersion of a 1".

    Dave

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