Off axis response

Discussion in 'Home Theater Projects' started by KyleGS, Oct 15, 2004.

  1. KyleGS

    KyleGS Second Unit

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    I have a few questions about off axis repsonse that maybe you guys can help me with.

    I'm about to build some DIY bookshleves.

    What exactly dictates how well a tweeter or high freq driver will perform off-axis?

    Due to my set-up in my living room I really need alot of dispersion.

    How does a regular 1" tweeter stack up against a larger driver like the little 3in TB, an even larger full ranger like a 4.5in wideband, a small horn (45x45 deg), etc in terms of off axis response.
    Can these generally be ranked in terms of off axis repsonse?

    Thanks for any help
     
  2. ThomasW

    ThomasW Cinematographer

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    The basics are .............

    For treble the smaller the diameter of the radiating element, the wider the dispersion.

    This means that a 3" driver (even with a phase plug) reproducing HFE will have worse off axis dispersion than a 1" dome reproducting those same frequencies.

    The width of the baffle also impacts this situation..
     
  3. KyleGS

    KyleGS Second Unit

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    Thanks Thomas-

    If you don't mind- how would the baffle affect the dispersion?
     
  4. michael.e

    michael.e Extra

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    go to the FRD page( i cant post links yet)

    Cheers
     
  5. ThomasW

    ThomasW Cinematographer

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