installing a new subwoofer (complete with photos) - Page 4
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Thread: installing a new subwoofer (complete with photos)

  1. #46
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    Hey Mason and Ryan. There may not be enough airspace in there to properly allow the sub to sound great. Heres a couple of ideas. Try putting dynomat or something similarover the sub whole and cut out about 1in in diameter smaller than the whole. Then fold it inward. Also you can try putting a 1sq foot of fiberglass into the space which allows the airspace to appear bigger to sub. If you hear rattles back there then you need to dynomat that panel. I can almost guarantee that it will sound better. Vibrations will cause the sound quality to be reduced because you will hear vibrations in between the sound waves creating more of a muffled sound.

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  3. #47
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    Quote Originally Posted by jbrac25
    There may not be enough airspace in there to properly allow the sub to sound great.
    There is more airspace than is needed, if anything it may need to be
    reduced. The airspace required is .7cubic ft. and the tailgate is roughly
    1.2cubic ft. or so. Its just that the trim piece is blocking the sound, when
    you put the trim on its creating something similar to a bandpass enclosure
    in which case you would port the trim piece (not a good idea in my opinion).
    I think you can seal off the space between the sub and the trim (it already
    has foam installed on the trim (you can see in the picture) by adding a little
    more foam, it may be enough to get better sound. And of course securing
    rattles best as possible.

  4. #48
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    Ok your right then ryan, another way could be to dynamat the inside thereby reducing the airspace. I know theres some other stuff that does it but i cant think of it right now.

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  6. #49
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    okay, so i've messed around a little more and i think a major problem is the amount of air leaks?! i've only just had the chance tonight to mess around with it while in the garage and by simply running my hand across the trim i have found a few significant leaks. the main ones being on the bottom corners at both ends of the tailgate with one other where the latch is...but i don't envision a remedy for that one!

    i may be daring enough to attempt to take off the trim myself to see if i can find a better solution but i'm beginning to believe that the under-the-seat option may be the best bet. once again, there is a significant improvement with the pioneer sub in the tailgate but it is frustrating cuz i know it can handle so much more than what i am currently pushing it to right now.

    i do however think that if you find a viable and efficient way to tighten up the trim you can kill two birds with one stone. however, i am just not so technically inclined! for the most part there is almost always a way to solve the rattling, but the "distorted" sound that i am getting when i crank up the power may just be the mismatch b/w sub and enclosure. the license plate is not really an issue, some chewing gum can knock that problem right out!

    ...but if the ud-sw10u fits under the seats right now (ryan is that the enclosure you were looking at or were you thinking custom?) it may
    save a lot of time and frustration in the long run. especially for people like me who wouldn't know where or how to start with anything custom without racking up the $$$.

    either way, i'll be checking up on your progress as i'm relying on you guys to make my life easier!

  7. #50
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    So are you saying that the low profile sub from pioneer might fit under the back seat if the right enclosure was made?

  8. #51
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    Quote Originally Posted by MasonSensation
    okay, so i've messed around a little more and i think a major problem is the amount of air leaks?! i've only just had the chance tonight to mess around with it while in the garage and by simply running my hand across the trim i have found a few significant leaks. the main ones being on the bottom corners at both ends of the tailgate with one other where the latch is...but i don't envision a remedy for that one!
    Yea, makes sense. If you look at my first post, the first picture, you can
    see the factory foam they have on the trim. Maybe by adding more or
    something else, you can seal it off enough.
    Mason- my factory subwoofer doesn't really sound all that bad, just not
    as powerful as I like. The factory sub doesn't really rattle things too bad
    and I haven't heard any distortion. This is how I set my radio:
    Everything sounds best in Logic7, with Logic7 off it sounds like crap.
    From the center...
    Bass: 4 or 5 clicks right
    Treble: 7 clicks right
    Fade: 2 clicks left
    Subwoofer: 2 clicks right
    If your hearing distortion, definitely don't let it play long like that.
    It could have a lot to do with the factory radio EQ settings too though,
    which is what the cleansweep takes care of; but only if you run all
    the speakers thru it. Also, make sure your amp is set correctly... the
    cut off frequency, bass boost, and gains. I'm sure they set it all
    correctly for you. The factory subwoofer has 2 sets of speaker wires, 4 wires total). The pioneer only has 2 wires. Again, I'm sure they wired this correctly too. It could
    just be that the tailgate enclosure it too big, so I may add some kind
    of thick foam in the center to cut the airspace in half.
    i may be daring enough to attempt to take off the trim myself to see if i can find a better solution but i'm beginning to believe that the under-the-seat option may be the best bet. once again, there is a significant improvement with the pioneer sub in the tailgate but it is frustrating cuz i know it can handle so much more than what i am currently pushing it to right now.
    Its always sort of a gamble on how it will sound, especially trying to
    integrate with the OEM setup. It could just be a matter of getting the
    setting set correctly, stoping a few rattles, or sealing things off. In any
    case, if it just doesn't sound good at least nothing has been altered and
    there are always alternatives.
    ...but if the ud-sw10u fits under the seats right now (ryan is that the enclosure you were looking at or were you thinking custom?) it may
    save a lot of time and frustration in the long run. especially for people like me who wouldn't know where or how to start with anything custom without racking up the $$$.
    yea, that's the one I was thinking of.
    http://www.pioneerelectronics.com/pna/v ... 26,00.html
    Not sure if it fits, haven't checked the deminsions. Could be an option.

    Mason- did they install an audiocontrol line converter? Where did they
    install the amp and line converter? Photos?

    -------EDIT--------
    lining the tailgate enclosure with this stuff would probably make a big
    difference, problem would be putting it in there... all you have is the
    sub cutout to work thru, could still cover a good amount of surface area.
    I will probably use this stuff around the outside of the sub also to seal it off
    from the trim best I can.
    http://www.crutchfield.com/S-TlizL5pNoF ... morephotos[/b]

  9. #52
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    i am going to dig into the amp tomorrow and test out a few more configurations as far as trying to balance the gain and frequency controls. i have it at a suitable level right now that provides more bump than the factory and with a more resonant tone but i don't want to put anyone under the impression that it will set off any car alarms!

    having listened to it again though i am satisfied with the 'bump' factor and would say it def adds to a system that is not that bad too begin with. in all fairness i never wanted booming bass, but now that i've set it up, i want to be able to exercise the option! i will probably look into checking out about reducing the airspace when i get the chance...sounds like an interesting option.

    as for placement, exactly as you said...the floor piece behind the back seats has a ton of space and is exactly where they put my amp. very accessible and has made it a breeze for me to go back and forth between subs. funnily enough, i know they used a line out converter but i have no clue where they placed it. i don't think they put it under any seat, but i think they may have placed it under the passenger side flooring right under the glovebox. i'll call tomorrow and find out for sure, and i'll also be able to take some pics tomorrow afternoon and post them.

    macattack...check out the link in ryan's post to the under-seat enclosure. i don't have the dimensions for it yet either (too lazy to sign-up) but i'll grab a look at it tomorrow and see whether or not it could fit...ha, maybe even two!

  10. #53
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    by the way, it was a peripheral line out converter that was on my invoice. i hope that hasn't been my problem all along?! i see there are plenty that can handle the 50w

    also, i saved the pdf file for the dimensions of the ud-sw10u if anyone wants it. you can e-mail me at [email protected]. or you can just download it off the pioneer website, it's not a pain to register

  11. #54
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    No, if they used that line converter then I'm sure its fine; they
    know more about it than me.
    I'm seriously doubting the pioneer box will fit under the seats as they
    have those bars under them, it may though.
    -------EDIT---------
    I'm positive the distortion your hearing is because there is too much airspace
    for the sub. A perfect size enclosure could be 1.5ft x 1ft x .4in. , the tailgate
    is much larger than this. So i've ordered some original dynamat and some
    1/2in. dynamat insulation which I will put in the tailgate enclosure. This
    should decrease the airspace and add noise dampening. [/b]

  12. #55
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    ok, the hard part is over. jeeeezuuzzz! It took 2 hours to run the amp
    power wire thru the firewall! Had to remove the battery, unscrew the
    fuse box, and made MANY MANY attempts to get my steel fish cable
    thru the wiring harness and into the glovebox area. I was very close
    to just drilling a whole in the firewall, but on my last attempt I got it
    thru. I'll be out of town for the weekend, still don't have the audiocontrol's
    in; should be here monday. Not sure when the dynamat will be in, but
    once its all here, I'll get busy.

  13. #56
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    That dynamat dynaliner is pretty much the same thing they carry at REI for people to put under their sleeping bags when you go camping. You can buy a 10 ft roll of it at REI for cheap. Called close cell pad. http://www.rei.com/online/store/Product ... AMPING_TOC
    Very easy to put in. I used it on top of my dynamat when i did this on my old tahoe. Much cheaper than dynamat for the same purpose, plus you can sleep on it lol.
    Heres another dynamat product you can put right behind the speaker which will help by reducing vibrations and distortion that effect the sound quality. http://www.dynamat.com/products_car_audio_dynaxorb.html
    Sounds like you guys are on the right track, just gonna take lots of work to make something sound good in that stock location without modifications.

  14. #57
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    sorry it took so long, but i finally gots some snaps of the setup...



    ...with the panel behind the rear seats off...





    ...as you can see, with the panel back on it completely covers the amp. right now i have the box in so i just pulled out a little slack wiring to connect into the sub...





    a little off topic here but are there any good products out there to clean the rubber cargo mat?! it looked really smart when i had first put it in but now it looks like hell! it serves its purpose well but i would like it to look a little sharper when i don't have the need to haul anything around.


  15. #58
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    Quote Originally Posted by MasonSensation
    sorry it took so long, but i finally gots some snaps of the setup...
    a little off topic here but are there any good products out there to clean the rubber cargo mat?! it looked really smart when i had first put it in but now it looks like hell! it serves its purpose well but i would like it to look a little sharper when i don't have the need to haul anything around.
    Thanks for the photos Mason. Boy you sure jumped on this idea pretty
    quick Hopefully I'll be of some help on solving the sound quality issues.
    The audiocontrols came in today (LC8 and LC6i), I'll probably end up using
    the LC6 as its really all I need, plus it matches the charcoal amp, the LC8
    is white. Anyway, the dynomat should be in either tomorrow or Wed. Then
    I'll start the install. I'm pretty obsessive and thorough, so it may take me
    a couple days
    Oh and about the rubber cleaner... this stuff works great:
    http://www.trimshine.com/
    you can buy it at PepBoys

  16. #59
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    You guys should try the expanding foam sealer they sell at Home Depot. I can't think of what it's called, but it comes in a hairspray sized can and just squirts out like whipped cream. Then it expands and hardens. That would seal it, take up some space, and stop some rattles since it sticks everything together. And it would only take 30 seconds and $5.

  17. #60
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    Quote Originally Posted by Drevs
    You guys should try the expanding foam sealer ...
    yea I thought about that. I was going to check for any airleaks in the tailgate
    once the sub is doing its thing. If there are any, I think the foam sealer spray
    would work good at filling those up. The problem is going to be actually
    reaching behind and to the other side.

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