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Reload Thread: Sub Direction?

  1. #1
    02MUSTANG GT's Avatar
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    Icon7 Sub Direction? UPDATE: 1st post.

    I just built a box for my 02 Mustang GT and the vibrations are there but the sound isnt. I am thinking the subs may sound better facing towards the trunk? I have never done a box for a coupe, only hatchbacks, so sound direction has never been a problem. Will the bass sound better if I face it backwards, or is there a bandpass type box or better I am missing?

    Thanks for any suggestions!


    Edited to add: Alright, I tried the wiring suggestions, and it made no difference. But, what I did figure out is that the bass DOUBLED when I opened the trunk. Thus, I assume the problem is the bass cancellation I read about in another thread.

    So, do I turn the box around, or do I do I remove the Mach 460 rack from under the rear deck leaving only a rear deck frame, add baffles and trim pieces for the 5X7's and fire the woofers straight up into the back window. Either would be relatively easy, but the straight up version would allow me to use my current flush mount set-up in the trunk. I can just remove the front piece of the box and replace with a solid piece and then cut new holes in the top of the box.

    What do you guys think?

    Edit #2 i turned the box around to face the back of the trunk and it SLAMS. Love it. Need to build a new box now though so it looks better. This will do for a few weeks. Thanks for all your help!

    Heres the current set-up.

    Yes I know the subs are underpowered. LOL

    [IMG][/IMG]

    [IMG][/IMG]
    Last edited by 02MUSTANG GT; 05-30-2008 at 04:27 PM. Reason: Add photos, add update







  2. #2
    60ndown's Avatar
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    Re: Sub Direction?

    three 10s should be plenty loud if you got 400 watts or more?

    you sure theyre wired correctly?

    in phase?



    Quote Originally Posted by NeedDirections View Post
    Yeah this thing is mint. you pay $300+ship and wait 2-3 wks from FI.
    Quote Originally Posted by andytb View Post
    shipping is free
    Quote Originally Posted by NeedDirections View Post
    Alright then,

    Price is 250 Shipped

  3. #3
    02MUSTANG GT's Avatar
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    Re: Sub Direction?

    Quote Originally Posted by 60ndown View Post
    three 10s should be plenty loud if you got 400 watts or more?

    you sure theyre wired correctly?

    in phase?

    The bass sound is there, but not like it has been in the past when fired off a hatchback window or the like. It's like I can feel the bass, but not hear it like I have in previous installs.

    The voice coils are wired in series and paralleled at the amp. Each sub has it's own sealed enclosure.




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    Re: Sub Direction?

    disconnect 2 subs

    play 1 sub with music,

    connect sub number 2 more bass yes or no. ?

    if yes connect sub number 3 ..more bass yes or no?

    if there is less bass when you connect subs 2 or 3 your wireing is wrong.



    Quote Originally Posted by NeedDirections View Post
    Yeah this thing is mint. you pay $300+ship and wait 2-3 wks from FI.
    Quote Originally Posted by andytb View Post
    shipping is free
    Quote Originally Posted by NeedDirections View Post
    Alright then,

    Price is 250 Shipped

  5. #5
    Crzy's Avatar
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    Re: Sub Direction?

    this is the same thing i am fearing with a front facing setup. that box looks sealed correct? hope i do not run into the same problems with a ported enclosure

    sorry i cant help but ive read a lot where people say that this setup may or may not work.



    Front Stage - JBL P650C in fiberglassed door pods
    Subs - HDC315
    Sub amp - Hifonics 2608D @ 1 ohm
    Comp amp - clarion APA2160 2 channel
    HU - premeir ub5000
    2/0 wire
    optima YT in back

  6. #6
    Supergumby5000's Avatar
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    Re: Sub Direction?

    Quote Originally Posted by 60ndown View Post
    disconnect 2 subs

    play 1 sub with music,

    connect sub number 2 more bass yes or no. ?

    if yes connect sub number 3 ..more bass yes or no?

    if there is less bass when you connect subs 2 or 3 your wireing is wrong.


    also, that looks like a sealed box. with that said, in a sealed box output will improve with the subs facing backwards.



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    Project: Avalanche V2... http://www.caraudio.com/forum/showthread.php?t=432321
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    Re: Sub Direction?

    Quote Originally Posted by Supergumby5000 View Post


    also, that looks like a sealed box. with that said, in a sealed box output will improve with the subs facing backwards.
    it looks like in ur avatar u have a front firing setup also, i see urs is ported how do you like it? does it sound different then a rear facing setup? more/less spl and overall sound quality?

    sorry for the hijak might help out op though



    Front Stage - JBL P650C in fiberglassed door pods
    Subs - HDC315
    Sub amp - Hifonics 2608D @ 1 ohm
    Comp amp - clarion APA2160 2 channel
    HU - premeir ub5000
    2/0 wire
    optima YT in back

  8. #8
    Supergumby5000's Avatar
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    Re: Sub Direction?

    Quote Originally Posted by Crzy View Post
    it looks like in ur avatar u have a front firing setup also, i see urs is ported how do you like it? does it sound different then a rear facing setup? more/less spl and overall sound quality?

    sorry for the hijak might help out op though
    I love it ported, but this is coming from a guy who loves loud setups.

    That, and the setup you see in my avatar is in the bed of a truck firing into a cabin. I cant fire the subs any other way



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    Project: Avalanche V1... http://www.caraudio.com/forum/showthread.php?t=345189
    Project: Avalanche V2... http://www.caraudio.com/forum/showthread.php?t=432321
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    Crzy's Avatar
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    Re: Sub Direction?

    Quote Originally Posted by Supergumby5000 View Post
    I love it ported, but this is coming from a guy who loves loud setups.

    That, and the setup you see in my avatar is in the bed of a truck firing into a cabin. I cant fire the subs any other way
    true, im just hoping that my new setup fo front firing will be louder or at least the same as my old setup of rear firing in the same box same subs same everything.



    Front Stage - JBL P650C in fiberglassed door pods
    Subs - HDC315
    Sub amp - Hifonics 2608D @ 1 ohm
    Comp amp - clarion APA2160 2 channel
    HU - premeir ub5000
    2/0 wire
    optima YT in back

  10. #10
    Supergumby5000's Avatar
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    Re: Sub Direction?

    if you want to front fire, port it. The output will increase (and you will lose all of your trunk space)

    if you wanna stay sealed, i'de reccomend rearfiring.



    .
    Project: Avalanche V1... http://www.caraudio.com/forum/showthread.php?t=345189
    Project: Avalanche V2... http://www.caraudio.com/forum/showthread.php?t=432321
    Project: F350... Coming Soon!
    .
    Need a box or box design? -EMAIL- me for info/quotes, do NOT send a PM
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  11. #11
    Supergumby5000's Avatar
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    Re: Sub Direction?

    also, double check your wiring befor eyou get too gung-ho here



    .
    Project: Avalanche V1... http://www.caraudio.com/forum/showthread.php?t=345189
    Project: Avalanche V2... http://www.caraudio.com/forum/showthread.php?t=432321
    Project: F350... Coming Soon!
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    Need a box or box design? -EMAIL- me for info/quotes, do NOT send a PM
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    02MUSTANG GT's Avatar
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    Re: Sub Direction?

    Thanks fellas! I'll check the wiring later this evening! If that doesnt work, I'll try to turn the box around.

    If I was to rebuild the box, is there a better design? I should checked here before I built I guess.




  13. #13
    Crzy's Avatar
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    Re: Sub Direction?

    try ported for more output? supergumby also suggested the same thing



    Front Stage - JBL P650C in fiberglassed door pods
    Subs - HDC315
    Sub amp - Hifonics 2608D @ 1 ohm
    Comp amp - clarion APA2160 2 channel
    HU - premeir ub5000
    2/0 wire
    optima YT in back

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    Crzy's Avatar
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    Re: Sub Direction?

    i moved my box from rear firing to front in my current car not the car im building a baffle for and with my 3.5 cube box at 32 hertz it seemed much louder to me. i dont have a meter so i cant say the gain but by ear it seamed to get louder with less power. the lows did not seem as loud though, i dont know the frequency of the song but the low bass you can barely hear just feel.



    Front Stage - JBL P650C in fiberglassed door pods
    Subs - HDC315
    Sub amp - Hifonics 2608D @ 1 ohm
    Comp amp - clarion APA2160 2 channel
    HU - premeir ub5000
    2/0 wire
    optima YT in back

  15. #15
    02MUSTANG GT's Avatar
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    Re: Sub Direction?

    The more I read online, I'm thinking it may be a wiring problem. If that doesnt work, I'm gonna flip the box around and try it facing towards the trunk.

    Another thought I had was possibly replacing the front piece of the box and making trim plates for the 5X7's in the rear deck (w/baffles) and recutting the sub mount holes in the top of the box. That way there would be nothing blocking the woofers and they would be firing off the back glass. Any comments on that?




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