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    Trey803's Avatar
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    Mids have too much exursion

    So I hooked up my p880 and did the auto eq thing. IMO it made it sound alot better than before. The mids have now come alive like I've never seen and they sound really good. The problem is that the woofers are moving so much that they are hitting the door panel. Any body have this problem and if so how did you fix it. The only way for me to take make the speakers sit farther back would be to remoce the clay I used in and around the speaker baffles.



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    Re: Mids have too much exursion

    I'm going to go ahead and guess you have cancellation issues in your midbass area. The auto EQ is detecting your phasing issues, and attempting to EQ it out, which isn't possible, no matter how hard it tries. Turn off your auto EQ, flip the phase on one of your midbasses and see if you don't get an increase in output. If you have an adjustable phase on your fronstage amp, use that, if not try putting them 180 out by flipping wires on 1 side.




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    Re: Mids have too much exursion

    If they are sounding louder than before, its probably not a cancelation issue. Maybe just try eq-ing some of the lower frequencies down a bit and see if that helps while maintaining your better/louder sound.



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    Re: Mids have too much exursion

    ? I just said that they sounded great and amazing. Their is almost too much midbass because it is causing the speaker to hit the grill on the door panel. I dont understand what you mean by attempting to get an increase in output. I have plenty of output.



    HU: DEH-80PRS
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    Re: Mids have too much exursion

    Yes I changed the slope of the eq curve to -12db and also change the crossover f to 100. This stopped the hitting but I kinda miss the midbass.



    HU: DEH-80PRS
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    Front Stage Amp: Image Dynamics i2600
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    Re: Mids have too much exursion

    Quote Originally Posted by Trey803 View Post
    Yes I changed the slope of the eq curve to -12db and also change the crossover f to 100. This stopped the hitting but I kinda miss the midbass.
    what was it at before, 80hz?



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    Re: Mids have too much exursion

    80 and -6db



    HU: DEH-80PRS
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    Re: Mids have too much exursion

    make boxes for the midbass.



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    Re: Mids have too much exursion

    Quote Originally Posted by Trey803 View Post
    Yes I changed the slope of the eq curve to -12db and also change the crossover f to 100. This stopped the hitting but I kinda miss the midbass.
    80hz with a 1st order slope was a bit low,that'd explain your excursion. You should be get more potential output from your mids now, just not as much in the subbass area. Can you drop your center any lower, maybe 60hzish at 12 or 24.

    PS. He'll lose output down low by sealing those, heck, he'll probably lose output period, SLC's mids have a high q as I remember. Best comes to best, it'll sound peaky.




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    Re: Mids have too much exursion

    keep it at 80 but put the slope as high as it can go, like 24db. with it only at 6 its playing a lot of subbass frequencies down into the 40hz range. not good for those speakers



    I must follow in eugenics' footsteps, for he is great

    Ref's: Ebay


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    Re: Mids have too much exursion

    Had the same problem with my AA poly mids. I made a small "L" shaped bracket and the shorter leg is about 3/8". I drilled a hole in it and mounted it with one of the bottom speaker screws so it holds the door panel away from the driver a little more. I did have to use a few self tapping screws to secure the door panel in that corner but it works fine.




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    Re: Mids have too much exursion

    Found a pic. It's on the lower/left mounting screw. Has some electrical tape on the part that contacts the inside of the door panel. It's about 3/8"-1/2" tall. HTH....





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    Re: Mids have too much exursion

    Yeah I checked and the SLC instruction manual sais 80hz at -12db. If my amplifier is also set at 80hz and has a -12db slope, and the cd player is set at a -12db slope attenutating the signal after they have already been attenuated by the amplifier woud this result in a steeper slope.



    HU: DEH-80PRS
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    Front Stage: Rainbow SLC 265
    Front Stage Amp: Image Dynamics i2600
    Sub: Dayton RSS210HF-4 8"
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    Wire: Knu

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    Re: Mids have too much exursion

    nope



    I must follow in eugenics' footsteps, for he is great

    Ref's: Ebay


    VOA_NIGHTMARE, Blados, frankga2, allenzo, bamaboy x2, Crown_amps, violentrapture, adio x3, bumpin_blazer, fi car audio, haunther, sbcaprice305 x2

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    Re: Mids have too much exursion

    Quote Originally Posted by Trey803 View Post
    Yeah I checked and the SLC instruction manual sais 80hz at -12db. If my amplifier is also set at 80hz and has a -12db slope, and the cd player is set at a -12db slope attenutating the signal after they have already been attenuated by the amplifier woud this result in a steeper slope.
    try it and see. You may not get the exact intended results, but it should helps some, hopefully the Q's are close.




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