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Dynaudio speakers and foam bungs - what for?

Discussion in 'Home Cinema Speakers' started by StuartBooth, Dec 9, 2000.

  1. StuartBooth

    StuartBooth
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    My Home Cinema sound is handled by a set of Dynaudio speakers:

    Fronts - Dynaudio Contour 1.1's
    Centre - Dynaudio Contour Centre
    Rears - Dynaudio Audience 40's

    The Contour 1'1s and the Audience 40's each came with a small foam 'bung' (for want of a better term - may have read this somewhere). I left this in the box not knowing what it was for.

    Then I noticed they have a hole at the back to allow air movement. Playing "Playschool" for the moment, the shapes fit - but what's the effect? I should try it of course, but I'd be interested to know the theory so I know what I'm looking for.


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    Stuart Booth
    Somewhere in Buckinghamshire, England, UK
     
  2. Glyn

    Glyn
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    They may be provided if you dont want your speakers to be ported?

    If the port is open the bass sounds louder (but may be boomy) and if the port is closed (using bungs) then the peaker will be a sealed unit.

    Ports = louder bass, but not as controlled due to reduced back pressure in the cabinet

    no ports = very controlled, uses sealed cabinet as the baffle, making the speaker less "flappy!"

    hope that helps.



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    No mother, You HAVE to watch it this loud, it is a waste of money otherwise.

    "I want to tell you a secret, I EAT dead people!"
     

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