Dust Cap

Discussion in 'Archived Threads 2001-2004' started by Mark Fitzsimmons, Jul 13, 2002.

  1. Mark Fitzsimmons

    Mark Fitzsimmons Supporting Actor

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    I know what a dust cap is but I don't know what its function is, why some speakers don't have them, and what's behind them that needs capped.
     
  2. Chu Gai

    Chu Gai Lead Actor

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    The dust cap simply serves to protect the voice coil/motor structure of the woofer from becoming damaged. Some also
    think that the dustcap also aids in aligning the suspension of the speaker. That's my take on it.
     
  3. Mark Fitzsimmons

    Mark Fitzsimmons Supporting Actor

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    So if I removed the dust cap, I would see they voice coil?
     
  4. Chu Gai

    Chu Gai Lead Actor

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    and maybe drop something in it, then you can post on speaker upgrades!! hey if you've got an old speaker laying around...slice it open...otherwise...pandora's box [​IMG]
     
  5. Mark Fitzsimmons

    Mark Fitzsimmons Supporting Actor

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    I wouldn't do it on any speakers that I use but I do have some old woofers laying around.
     
  6. Chu Gai

    Chu Gai Lead Actor

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  7. Mark Fitzsimmons

    Mark Fitzsimmons Supporting Actor

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    Now that spawns a question. I was told that the dust cap does not effect the sound, but if there was a hole in the dust cap, wouldn't it diminish the driver's ability to move air?
     
  8. Chu Gai

    Chu Gai Lead Actor

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    lol...go put a hole in your dustcap...report back!
     
  9. Mark Fitzsimmons

    Mark Fitzsimmons Supporting Actor

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    Very helpful, thank you. [​IMG]
    A more helpful response would have been "That guy is full of shit"
     
  10. Chu Gai

    Chu Gai Lead Actor

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    God Mark, I was still working on coffee! basically the answer is quite probably not. people have had those dented and there's not been any apparent effect. having no grills and having kids is a great way to get them dented, punctured, etc. the pushing of air comes from the rest of the driver. if you dent them, it does tend to gnaw at you and there's various approaches to used to try and get them to pop back.
    I didn't think you were full of that. Those are good questions.
     
  11. John F. Palacio

    John F. Palacio Supporting Actor

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    Dust: Small particles of debris that float on air and deposit themselves where you do not want them.
    Cap: Protective barrier to prevent unwanted material from entering opening.
    Voice coil to magnet clearances not very big. Anything but air not desirable.[​IMG]
     
  12. Mark Fitzsimmons

    Mark Fitzsimmons Supporting Actor

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    Here are a few more speaker anatomy questions.

    Is the voice coil connected to the speaker cone?

    The voice coil is essentially an electomagnet, right?

    In DVC speakers, how are the voice coils placed in relation to each other?
     
  13. Jason Bell

    Jason Bell Stunt Coordinator

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    I once had a small hole in the dustcap of a subwoofer in my car and it definitely affected the sound. It sounded like a paper flapping sound every time the woofer was really hitting. A little glue fixed it right up. I dont know if it would make a difference if the whole thing were removed though.
     
  14. Chu Gai

    Chu Gai Lead Actor

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