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    maylar's Avatar
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    How much sound deadening is enough?

    I have one layer of RAAMmat 60 in my doors, on the outer skin, with 2 layers in a 8" square area behind the speakers. Doors are all metal and pretty thick (85 Oldsmobile). There's more RAAMmat on the inner door panel behind the carpeted trim panel, as well as the factory layer of foam rubber.

    I'm experiencing some strange "boomieness" with my door speakers, at midbass frequencies. They're Infinity Kappa 5.25 coaxials. Wondering if this is due to the door resonating, or the choice of speakers, or what.

    Opinions please?



    dave
    ----------
    1999 Buick Park Ave Ultra
    Head Unit: JVC KWHDR720
    EQ: Audiocontrol EQL
    Front Stage: Hybrid Audio Technologies Imagine 5.25 mids, Morel Maximo tweets
    Sub Stage: Boston G3 10", 0.5 cu ft sealed
    Amp: PPI Phantom 900.4
    Rear Fill: Boston SE953 6X9's




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    Hay guy.. First its not a bad choice of speakers.. i am 100% sold on jbl and infinity they have the best sq possible.. what you need to do is to get some bass blockers or a crossover @ about a min cut off of 100-120 hz..or more more would be better.. that would take that sound out cause there would be no more bass.. but.. some bass baffles.. would take the ecco effect as i call it out of it and would make the sound of them improve 100% . they are like putting them in boxes well kinda.. they are pretty cheap and crutchfeild has them and i thing jcwhitney and maybee some other places like that Good luck and later...




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    chris229's Avatar
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    might be that the damping mat has caused your door to be sealed more making the speaker sound like it in a big box




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    RE: how much sound deadening...

    When you can barely close your doors due to weight issues or when you top speed is suddenly 45 MPH.. :p

    Mike



    Your friendly neighborhood subaru freak!

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    maylar's Avatar
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    Re: RE: how much sound deadening...

    Originally posted by mykeys
    When you can barely close your doors due to weight issues or when you top speed is suddenly 45 MPH.. :p

    Mike
    LOL then I have enough. The car is incredibly quiet inside. The doors close with a "thump", and yes they're heavy. But I do notice a narrow range of midbass frequencies that seem to be "hollow" sounding - not natural. No one else notices it but me.

    I'm running the Kappa's full-range but at low power (maybe 25 watts). When I hipassed them at 80 hz the midbass up front ******. Gonna use a different amp with adjustable hipass freq and maybe they'll be OK at 60 or so.



    dave
    ----------
    1999 Buick Park Ave Ultra
    Head Unit: JVC KWHDR720
    EQ: Audiocontrol EQL
    Front Stage: Hybrid Audio Technologies Imagine 5.25 mids, Morel Maximo tweets
    Sub Stage: Boston G3 10", 0.5 cu ft sealed
    Amp: PPI Phantom 900.4
    Rear Fill: Boston SE953 6X9's

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    mykeys's Avatar
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    Something that may help is to try components rather than coax's..if that isnt realistic then maybe an EQ to help tame the boomyness

    Mike



    Your friendly neighborhood subaru freak!

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    more_spl's Avatar
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    whats the difference between components and coax's ?



    i decided not to have a signature

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    Wonderbread's Avatar
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    the problem there is, Infinity ***** for Midbass, plain and simple..
    i ahve two sets, ahve heard many many others, tehy jsut dont produce midbass frequencies well..
    tehre's nothing you can do...



    MSN - pnenis@hotmail.com
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    Quote Originally Posted by PT Teal
    I woke up one morning and found a cop at my door telling me he found my car on fire in the middle of the desert.
    Quote Originally Posted by cleanerupper View Post
    Some people have told me that the chrome reflects sunlight, therefore the amp doesn't get as hot as others. Is this true?

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    mykeys's Avatar
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    Granted that is an inherant problem with Infinity but I have seen people with their comps in kicks and door pods some have been very creative and used AP mat which did in fact clean up the midbass boominess and wasn't too lacking in it either..

    The difference between Comps and Coaxs
    Coaxes the tweeters are a part of the woofer with no passive X/O
    They are easy to install in almost any application..They also usually dont have as much midbass/midrange due to excursion limitations placed on the woofer by the tweeter.

    Comps Tweeters are seperate and do come with passive X/O
    They are more difficult to install because you have two extra pieces to worry about the tweet and X/O You generally want to find the and mount the tweeters wherever they sound the best to you ( can be very aggrivating)
    You generally havea better midbass/midrange response and have a higher power handling capabilities.

    If I missed or forgot anything fellas go ahead and put it up.. I have been out for a while.
    Mike



    Your friendly neighborhood subaru freak!

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    Wonderbread's Avatar
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    you get better installation flexibility with components, alsom, they give better imaging....



    MSN - pnenis@hotmail.com
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    Quote Originally Posted by PT Teal
    I woke up one morning and found a cop at my door telling me he found my car on fire in the middle of the desert.
    Quote Originally Posted by cleanerupper View Post
    Some people have told me that the chrome reflects sunlight, therefore the amp doesn't get as hot as others. Is this true?

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