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Thread: Car Audio Fundamentals, Myths, Misnomers, & General B.S. - 2007 CA&E

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    Senior Member Euphonic's Avatar
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    Car Audio Fundamentals, Myths, Misnomers, & General B.S. - 2007 CA&E

    Kelly, Tim "Car Audio Fundamentals, Myths, Misnomers, & General B.S." Car Audio & Electronics April 2007: 62-64.




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    Member Captain Buff's Avatar
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    Re: Car Audio Fundamentals, Myths, Misnomers, & General B.S. - 2007 CA&E

    I have always wondered: if indeed the best place for the tweeters is as close as possible to the mid range; why not just use coaxials? Can’t get the tweeter much closer than that. Or if wanting separate active drivers then a brand that allows you to attach the tweeter to a ‘middle mounting pole’ of the mid range (I don’t know if these are still around...I had some back in the day)...
    Any thoughts as to why what I just said is rubbish...?

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    Noob Sudoku's Avatar
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    Re: Car Audio Fundamentals, Myths, Misnomers, & General B.S. - 2007 CA&E

    I think that used to be a popular method, looking back through some of the classic builds shows tweeters attached over the mid, often using rods or brackets, and usually in the kick panels.

    Kef (UniQ?) were also used, I believe this is a coaxial of high quality, and has separate inputs from an external xover, rather than the simple cap hi-pass used on most coax.
    Last edited by Sudoku; 02-10-2021 at 03:05 PM.

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    Re: Car Audio Fundamentals, Myths, Misnomers, & General B.S. - 2007 CA&E

    The coaxial speaker will be nice for time alignment and imaging. But one issue is sound in a midrange speaker originates from the voice coil's circle/area and not the outside cone/paper/surround area. We can verify this by holding a tube closely to the center/voice-coil and the other end on our ear (empty kitchen towel tube will work). If we put a large tweeter on a post/pole in the middle ("coaxial speaker arrangement") it will kind of block or color the sound from the midrange... so, some separate/component speakers are more desirable.

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    Member Captain Buff's Avatar
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    Re: Car Audio Fundamentals, Myths, Misnomers, & General B.S. - 2007 CA&E

    Quote Originally Posted by diy.phil View Post
    The coaxial speaker will be nice for time alignment and imaging. But one issue is sound in a midrange speaker originates from the voice coil's circle/area and not the outside cone/paper/surround area. We can verify this by holding a tube closely to the center/voice-coil and the other end on our ear (empty kitchen towel tube will work). If we put a large tweeter on a post/pole in the middle ("coaxial speaker arrangement") it will kind of block or color the sound from the midrange... so, some separate/component speakers are more desirable.
    Yeah makes perfect sense mate, cheers for that ��

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    Senior Member Euphonic's Avatar
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    Re: Car Audio Fundamentals, Myths, Misnomers, & General B.S. - 2007 CA&E

    I guess it depends on the coaxial. There’s a handful of home audio companies that thrive using them and people seem to be quite pleased with the results. The automotive environment is different though, so maybe the extended range drivers offered by some are the better way to go.

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    Re: Car Audio Fundamentals, Myths, Misnomers, & General B.S. - 2007 CA&E

    Quote Originally Posted by Captain Buff View Post
    I have always wondered: if indeed the best place for the tweeters is as close as possible to the mid range; why not just use coaxials? Can’t get the tweeter much closer than that. Or if wanting separate active drivers then a brand that allows you to attach the tweeter to a ‘middle mounting pole’ of the mid range (I don’t know if these are still around...I had some back in the day)...
    Any thoughts as to why what I just said is rubbish...?
    Aside from the aforementioned issues, with a larger or lower frequency woofer, inter-modulation distortion becomes an issue, heavy bass "pumps" the frequencies coming from the tweeters.

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