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Thread: Windsheild destructive reflection remedies

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    Re: Windsheild destructive reflection remedies

    Towels taped to windshield at bottom , some way of tenting towlels over top of speakers .

    Facing one another if the off-axis response is not an issue , may work well !

    With hard surfaces all covered or softer surfaces blocking the reflections , the null/node/suck-out may lessen or dissappear.
    Last edited by Hic; 09-11-2017 at 03:40 AM.
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    Re: Windsheild destructive reflection remedies

    www.pioneerelectronics.com/PUSA/Car/Stage4/

    2 5/8 inch reference level ( would be ideal )
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    Re: Windsheild destructive reflection remedies

    Quote Originally Posted by Hic View Post
    What do you have to "temporarily" block these reflections? Redirection via a 90 degree / right angle pvc elbow of sufficient size ( 6 inch ).
    Ie: rubber / carpet / towels / et cetera , think softest surface and extremely thick , facing drivers in direction that allows you to avoid majority of reflections - " temporarily ". Perhaps towels wrapped around rear of speakers and speakers firing at each other ! I believe your ears will suffice for your temporary testing to determine that reflective energy is your issue ( my bet ).
    I tried some temporary reflection blockers I found roaming around the neighborhood...













    Anybody know a good product to clean off the dashboard?

    Actually all good suggestions Hic... just need to find the time to try some things out...

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    Noob Truthunter's Avatar
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    Re: Windsheild destructive reflection remedies

    Quote Originally Posted by Hic View Post
    www.pioneerelectronics.com/PUSA/Car/Stage4/

    2 5/8 inch reference level ( would be ideal )
    Yes, those are the ones I'm considering as a last resort... really was impressed when I heard them and I believe they play pretty high so won't really miss anything if I replace the tweeters with them.

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    Re: Windsheild destructive reflection remedies

    This one will help tame those unwanted " ReflectionS "


    Quote Originally Posted by Truthunter View Post
    I tried some temporary reflection blockers I found roaming around the neighborhood...




    just need to find the time to try some things out...
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    Re: Windsheild destructive reflection remedies

    Quote Originally Posted by Truthunter View Post
    Yes, I plan on experimenting with this to see if it makes a difference...

    2. So, I think I will perform the following tests and go from there:

    1. Unmount the mid and measure it free air on-axis to off axis to verify it's not just a problem with the driver FR itself.

    2. Experiment with tilting the mid in different directions like Howard suggested to see if the issue improves.
    Get anytime to do some experimenting yet ?
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    Re: Windsheild destructive reflection remedies

    Quote Originally Posted by Hic View Post
    Get anytime to do some experimenting yet ?
    Hopefully this weekend...

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    Re: Windsheild destructive reflection remedies

    Hope you get it sorted !
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    Re: Windsheild destructive reflection remedies

    Was able to do some experimenting. I popped the mids out of their mounts and jammed them between the windshield and dash using some towels; basically on axis:




    Here is the resulting RTA comparison; Red is dash mounted, Blue is on axis in towels:




    Next experiment is to start playing with tilting up the back of the them (side near the windshield) at several different increasing angle to see if I can find a sweet spot...
    Last edited by Truthunter; 09-17-2017 at 04:30 AM. Reason: photo links

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    Re: Windsheild destructive reflection remedies

    Graphs are not showing up , but , more importantly , how did they sound ? Did the null , node or suckout dissappear ?

    I'm glad you got some time to try some things !
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