Thread: Subwoofer help....

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  1. #1 Subwoofer help.... 
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    Hi, I am wanting too install subs in my gtp. It has the bose system in it. I see in the back it has two subs on the on the liner thing behind the seats. I was wondering if instead if putting my subs in a box, that I could replace the bose subs with the aftermarket ones? Just a thought.
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  2. #2 Re: Subwoofer help.... 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
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    Speakers or Subwoofers?

    Also year of car?
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
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  3. #3 Re: Subwoofer help.... 
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    Subwoofers. And its a 99.
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  4. #4 Re: Subwoofer help.... 
    That Loud Guy 1LoudGrandPrix's Avatar
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    personally what i would do:
    get a new HU
    get a 4 channel amp for the mids and highs
    get a class D amp for the sub
    get a sub
    all the wiring and supporting to boot
    run new wires to all the speakers from the 4ch amp thus totally bypassing the bose system (can be a real headache)
    it will sound allot better and much more up-gradable also can go back to stock easy if you decide to sell
    98 Camaro SS 46k LS1, T56, All Stock. 00 GMC Sierra 2wd ECSB 106k Lm7, 3.73s tow needs lowered..
    01 Grand Prix GTP "201k" ~111k on motor, ~46k on trans, headers, 3.4 and a tune to come.
    01 Grand Prix GT 168k: Mods: Tune by TheOtherNick. Stereo: 320A alt,4 runs 0/1, XS D3400 front, 1 JYP 80ah Lithium rear, 2 Twisted Sounds 3500s, 2 Sundown Audio NightShade v.3 7 National Records..

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  5. #5 Re: Subwoofer help.... 
    GT Level Member GPGT4dr's Avatar
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    What a coincidence that I'm selling a monoblock amp and sub!
    Jay-D (Aka DJ Jack Ripper - Look it up on facebook!)
    1999 GPGT Sedan, 3800S2, black with MOST options :/
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  6. #6 Re: Subwoofer help.... 
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    What're you asking? And where are you located?
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  7. #7 Re: Subwoofer help.... 
    GT Level Member GPGT4dr's Avatar
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    Lets just say I'm flexible on the price, to an extent, and I'm located in MS.
    Jay-D (Aka DJ Jack Ripper - Look it up on facebook!)
    1999 GPGT Sedan, 3800S2, black with MOST options :/
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  8. #8 Re: Subwoofer help.... 
    GT Level Member GPGT4dr's Avatar
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    http://www.grandprixforums.net/fs-ca...amp-55462.html Like I said, I'm more than happy to work with you on the pricing. I'm not gonna give it away but I know times are hard right now.
    Jay-D (Aka DJ Jack Ripper - Look it up on facebook!)
    1999 GPGT Sedan, 3800S2, black with MOST options :/
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  9. #9 Re: Subwoofer help.... 
    I AM PEWPIN! rynoman03's Avatar
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    Get a Sundown Audio Sub. I hear they have a pretty good bang for the buck!
    1999 GTPHP Tuned, Ported SC/TB, 42#'s, SSAC's, ZZP Modded 1.9's/LS6 Springs/Manley's, TransGo Shift Kit, Poly Uppers, KYB GR2's/Springtech's. - 231k and traded it in. - Gone
    2000 GTP: XP, P&P'd Heads, N*\Lq4 MAF, GenV, 42#'s, PRJ Rails\FPR, Racetronix, TEP w/ 3.29 Gears, 300m, 7/8" chain, SSAC's. - Collecting dust in my garage.
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  10. #10 Re: Subwoofer help.... 
    GT Level Member GPGT4dr's Avatar
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    I've got a motor/basket for a nightshade V1 12
    Jay-D (Aka DJ Jack Ripper - Look it up on facebook!)
    1999 GPGT Sedan, 3800S2, black with MOST options :/
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  11. #11 Re: Subwoofer help.... 
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    Ill get back to you on that later today!
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  12. #12 Re: Subwoofer help.... 
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    I just want something thats gonna sound good and pretty loud. For a reasonable price.
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  13. #13 Re: Subwoofer help.... 
    GT Level Member chamilton89's Avatar
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    So back to your original question. Although I don't have the Bose system in my car, the woofers look to be mounted on the parcel shelf behind the rear seat in a free air configuration. This is going to be one of the most least desirable ways to hook up a subwoofer as minimum pressure is achieved without a box. Not only that, but only upgrading your speakers will likely actually reduce sound output because the voice could are able to handle so much more power on aftermarket speakers. Long story short, it is going to require a bit more money and time to achieve what you want. Don't listen to these other guys who want you to do the full Monty. If you just want to enjoy a little extra punch, either a line output converter, small amp, 10 or 12 inch sub and sealed or ported box and you would be just fine. Also, I would look into an amplifier with line level inputs, so no line output converter is needed, best of luck to you!
    Last edited by chamilton89; 12-14-2011 at 09:46 AM.
    Infinity all around.
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  14. #14 Re: Subwoofer help.... 
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    Thanks! Very much appreciated!
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  15. #15 Re: Subwoofer help.... 
    GT Level Member GPGT4dr's Avatar
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    Quote Originally Posted by Jordin View Post
    I just want something thats gonna sound good and pretty loud. For a reasonable price.
    The nightshade is what I would go with, as the sub new costs 600+$ and a recone is pretty cheap, I'd just rather not ship that big som'*****.
    Jay-D (Aka DJ Jack Ripper - Look it up on facebook!)
    1999 GPGT Sedan, 3800S2, black with MOST options :/
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  16. #16 Re: Subwoofer help.... 
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    Quote Originally Posted by GPGT4dr View Post
    The nightshade is what I would go with, as the sub new costs 600+$ and a recone is pretty cheap, I'd just rather not ship that big som'*****.
    Definitely understandable. Lemme look for a few things around here. My buddy was saying if i find a nice headunit he'll hook me up.
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  17. #17 Re: Subwoofer help.... 
    SE Level Member timreams's Avatar
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    also depending an how much you are willing to spend there are several subs now that are built for free air installs.

    Component Subwoofers at Crutchfield.com
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  18. #18 Re: Subwoofer help.... 
    I AM PEWPIN! rynoman03's Avatar
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    You gotta have a big amp for that Nightshade V1!
    1999 GTPHP Tuned, Ported SC/TB, 42#'s, SSAC's, ZZP Modded 1.9's/LS6 Springs/Manley's, TransGo Shift Kit, Poly Uppers, KYB GR2's/Springtech's. - 231k and traded it in. - Gone
    2000 GTP: XP, P&P'd Heads, N*\Lq4 MAF, GenV, 42#'s, PRJ Rails\FPR, Racetronix, TEP w/ 3.29 Gears, 300m, 7/8" chain, SSAC's. - Collecting dust in my garage.
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  19. #19 Re: Subwoofer help.... 
    That Loud Guy 1LoudGrandPrix's Avatar
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    Quote Originally Posted by rynoman03 View Post
    You gotta have a big amp for that Nightshade V1!
    2kw rms isn't asking that much.....

    i love my nightshade v.2 hybrids fyi the v.2 is 60.1 lbs
    98 Camaro SS 46k LS1, T56, All Stock. 00 GMC Sierra 2wd ECSB 106k Lm7, 3.73s tow needs lowered..
    01 Grand Prix GTP "201k" ~111k on motor, ~46k on trans, headers, 3.4 and a tune to come.
    01 Grand Prix GT 168k: Mods: Tune by TheOtherNick. Stereo: 320A alt,4 runs 0/1, XS D3400 front, 1 JYP 80ah Lithium rear, 2 Twisted Sounds 3500s, 2 Sundown Audio NightShade v.3 7 National Records..

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  20. #20 Re: Subwoofer help.... 
    I AM PEWPIN! rynoman03's Avatar
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    Jebus what's the peak and what ohm? I knew it was power hungry but DAYUM!
    1999 GTPHP Tuned, Ported SC/TB, 42#'s, SSAC's, ZZP Modded 1.9's/LS6 Springs/Manley's, TransGo Shift Kit, Poly Uppers, KYB GR2's/Springtech's. - 231k and traded it in. - Gone
    2000 GTP: XP, P&P'd Heads, N*\Lq4 MAF, GenV, 42#'s, PRJ Rails\FPR, Racetronix, TEP w/ 3.29 Gears, 300m, 7/8" chain, SSAC's. - Collecting dust in my garage.
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