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Reload Thread: Sundown 6.5 Subwoofer Project

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    Re: Sundown 6.5 Subwoofer Project

    Beautiful. Loving the copper in the motor, the throw potential, the diaphragm material, the rubber surround.... everything.

    I will own some of these.



    Quote Originally Posted by audioholic View Post
    Saying "clipping doesn't kill speakers" is a half-truth at best. Technically no, clipping itself does not hurt the speaker. But in clipping your amp, you can easily create a situation that WILL kill the speaker. Was the squared waveform the DIRECT cause of the failure? No. In the end, the answer is, always has been, and can only be... heat kills speakers. BUT, clipping increases heat generation, sometimes by a drastic amount. So to start a thread simply to state that clipping does not hurt speakers is, again, a half-truth at best.




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    Re: Sundown 6.5 Subwoofer Project

    im pretty interested in a free air response, would love to see what these would do in some doors...



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    Re: Sundown 6.5 Subwoofer Project

    Got the response graph in; could be very useful as a mid-bass as well




    - Jacob Fuller
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    Re: Sundown 6.5 Subwoofer Project

    Quote Originally Posted by sundownz View Post
    Got the response graph in; could be very useful as a mid-bass as well

    That impedance profile doesn't really jive with the .44mH figure. Does this sample have the copper treatment?



    Quote Originally Posted by audioholic View Post
    Saying "clipping doesn't kill speakers" is a half-truth at best. Technically no, clipping itself does not hurt the speaker. But in clipping your amp, you can easily create a situation that WILL kill the speaker. Was the squared waveform the DIRECT cause of the failure? No. In the end, the answer is, always has been, and can only be... heat kills speakers. BUT, clipping increases heat generation, sometimes by a drastic amount. So to start a thread simply to state that clipping does not hurt speakers is, again, a half-truth at best.

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    Re: Sundown 6.5 Subwoofer Project

    I'd love to have these in my doors




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    Re: Sundown 6.5 Subwoofer Project

    We are still developing the soft parts a bit at our factory; here is a video on the 2nd prototype with a small revision we made to the surround material :

    X-6.5SW Test Video From Factory #1 - YouTube
    "Early sample test. We are tooling a new spider to go with it as well. There is some high frequency sound which is a little bit of clipping of the source unit."

    X-6.5SW Test Video From Factory #2 - YouTube
    "Test at one frequency / maximum mechanical travel -- testing for ruggedness."

    At this point we are beating them silly just to test ruggedness -- so we are pushing them well into mechanical noise territory to do so. When I get my hands on them I'll do more videos at varying levels of excursion, etc.



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    Re: Sundown 6.5 Subwoofer Project

    **** those things are sick. hell of a lot of throw in the videos. would love to get some of these to play with when they come out



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    Re: Sundown 6.5 Subwoofer Project

    very nice !!
    Quote Originally Posted by sundownz View Post
    It's designed as a dedicated sub-woofer ; I'll post the full response of it up when we finalize the coil, though, as it should be useful as a mid-bass as well.

    We don't do a whole lot for tours; if someone stops in to pick something up and we aren't slammed we can show them a few cool things, of course.



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    Re: Sundown 6.5 Subwoofer Project

    sick 2 of these would be perfect for a center counsole build



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