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What is a free-air loud speaker?

  1. Sep 4, 2010 #1
    Hi all,

    I am trying to upgrade my car's audio system. There are kinds of free air loud speakers. I am not what they are.
    Anyone could explain and why they should be used in a car?
  2. jcsd
  3. Sep 6, 2010 #2

    Ranger Mike

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    Science Advisor
    Gold Member

  4. Sep 6, 2010 #3
    There are several references in Google.
    Key term I used... free air loudspeakers
  5. Sep 7, 2010 #4
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