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  1. #16
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    Re: lots of port noise. help please

    Get yourself some 3" thick walled square tubing and build a seat lift.
    That's what I do here at the shop.

    You can get ALOT more room under those seats!!!!

    If you cut the tabs off your seats, just weld up some new ones.



    Canaan White...'04 Avalanche
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    Shop Phone 318-343-8283




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    Re: lots of port noise. help please

    those ports are deff big enough



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    Re: lots of port noise. help please

    In your first post, OP, You said this box was for 4 sa 8's?

    The pics 007 posted show only two sub holes.

    Just noticed that and figured I'd point it out.



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    Re: lots of port noise. help please

    Quote Originally Posted by Jerhemy View Post
    In your first post, OP, You said this box was for 4 sa 8's?

    The pics 007 posted show only two sub holes.

    Just noticed that and figured I'd point it out.
    I think it was designed for 4, but only two were used at first was the case.

    OP- If it "just started" then it will not likely be port noise. Unless it started when you added the second two subs..then that would make since.

    Those seats can be lifted, its a bit of a pita but it can be done and it helps with enclosure volume, typically allows for more volume and port area...netting better results then what you currently have.




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    Re: lots of port noise. help please

    If the noise just started all of a sudden IMO its not the port its something else. On my old setup I had a stripped screw securing the sub and it came out and the sub was making some extra noise (rattle and hissing) this was a sealed box tho. IMO pull the subs check them and remount.




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    Re: lots of port noise. help please

    Quote Originally Posted by pro-rabbit View Post
    I think it was designed for 4, but only two were used at first was the case.

    OP- If it "just started" then it will not likely be port area. Unless it started when you added the second two subs..then that would make since.

    Those seats can be lifted, its a bit of a pita but it can be done and it helps with enclosure volume, typically allows for more volume and port area...netting better results then what you currently have.
    gotcha, that's what I was getting at. If OP had added two more subs to a box designed for 2 subs total that could be an issue.



    In the process of being installed:
    (2) DC-Level 3's
    Kicker ZX2500.1
    (2) Kinetik 2400
    Optima YT under the hood
    240amp Mechman alt
    Big Three in 1/0 Monster
    4 Runs Knu KCA 1/0 front to back
    8" Aero by Psychoacoustics
    2008 Volkswagen Jetta S

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    Re: lots of port noise. help please

    It was built for all 4 subs issue here here Scott is you need more internal area to get more port area which means you'll have to raise that seat no way around it. If you still want to use the seat. Sounds like you are looking for a spl box not a musical box a burp box can get you a 150. But a box for 8s on music will be very hard to get what you want Db wise from under that seat with out mods. Also you won't drop output level all of a sudden like you said ,something happened somewhere you need to check each subs coils may be burned a coil with the power your running




    pioneer avhx 5500 dvd, gzpa 1.4000 x 2
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    Re: lots of port noise. help please

    Yes the enclosure was designed for 4 subs originally...He only had two of them at the time I sent him the enclosure. I would pull subs and check for a leak somewhere..If it's doing it at high volumes that what it sounds like it could be. It might not hurt to pull subs and resin the inside of enclosure a little. You should be able to get most of it through the sub cutouts. It definitely wouldn't hurt the enclosure with the power you are running.




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    Re: lots of port noise. help please

    Okay, I am about to remove the subs and inspect the box for any leaks etc.. I will let you know what I find asap



    Ride:2009 Silverado Crew Cab
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    Re: lots of port noise. help please

    Well all the subs seemed to be fine except one had a terminal nut loose so I tightened it and reinstalled the subs. Also I mixed the subs up so there is one sub that is a couple weeks old and one that's a month and a half old on each side. I previously had the two that were broken in on one side and the other two new ones on the other side. I wonder if that had anything to do with it also?
    There were no leaks I noticed so I hooked them all back up and it seems to have helped a little bit. There is still some port noise, Im really thinking i just need more port area. I'm going to meet with one of Vegas' local car audio gurus on Monday to see what he thinks..



    Ride:2009 Silverado Crew Cab
    H/U: Pioneer avh-p4400bh
    Amps: Ampere Audio 3800.1 Ampere Audio 125.4
    Subs: 2 Tantric HDD 15's
    Enclosure: 4th Order Blow Through
    Mids/Highs: Tantric HD
    Singer 320 Hairpin 6 phase

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    Re: lots of port noise. help please

    Quote Originally Posted by Canaan View Post
    Get yourself some 3" thick walled square tubing and build a seat lift.
    That's what I do here at the shop.

    You can get ALOT more room under those seats!!!!

    If you cut the tabs off your seats, just weld up some new ones.
    Can you build me a seat lift?? If so how much?



    Ride:2009 Silverado Crew Cab
    H/U: Pioneer avh-p4400bh
    Amps: Ampere Audio 3800.1 Ampere Audio 125.4
    Subs: 2 Tantric HDD 15's
    Enclosure: 4th Order Blow Through
    Mids/Highs: Tantric HD
    Singer 320 Hairpin 6 phase

  13. #27
    Canaan's Avatar
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    Re: lots of port noise. help please

    Quote Originally Posted by sbarber82 View Post
    Can you build me a seat lift?? If so how much?
    PM me.
    I'll see if I can get around to building a few lifts for the shop next week and get you a price.



    Canaan White...'04 Avalanche
    HU Eclipse 7200MkII
    AMPS DD C4a(front active), 2 DD M2B
    SPEAKERS (Front) DD AT28, DD VO-M65
    SUBS...SOMETHING LOUD SOON!!?
    WIRES XSCORPION
    TEAM SOUTH

    Desiard Street Pawn and Car Audio, Monroe, La...XScorpion and DD Audio Dealer.
    Shop Phone 318-343-8283

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    Re: lots of port noise. help please

    Quote Originally Posted by mylows10 View Post
    It was built for all 4 subs issue here here Scott is you need more internal area to get more port area which means you'll have to raise that seat no way around it. If you still want to use the seat. Sounds like you are looking for a spl box not a musical box a burp box can get you a 150. But a box for 8s on music will be very hard to get what you want Db wise from under that seat with out mods. Also you won't drop output level all of a sudden like you said ,something happened somewhere you need to check each subs coils may be burned a coil with the power your running
    how do I check if I burnt a coil? I inspected.them when I removed them and nothing seemed off our smelled funny...



    Ride:2009 Silverado Crew Cab
    H/U: Pioneer avh-p4400bh
    Amps: Ampere Audio 3800.1 Ampere Audio 125.4
    Subs: 2 Tantric HDD 15's
    Enclosure: 4th Order Blow Through
    Mids/Highs: Tantric HD
    Singer 320 Hairpin 6 phase

  15. #29
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    Re: lots of port noise. help please

    Quote Originally Posted by sbarber82 View Post
    how do I check if I burnt a coil? I inspected.them when I removed them and nothing seemed off our smelled funny...
    dmm check the readings on the coils scott




    pioneer avhx 5500 dvd, gzpa 1.4000 x 2
    ab vfl 350.4 ,7 pc 2150 and a 150 ah power ware agm ,275 amp singer alt , 2nd one coming soon
    cdt 6.5 es 6 im mids,cdt es 010 tweets,es 02 mids ,mx1000 3 way x overs , sky high and stinger hpm o gauge wires ,also 2 tantric hdd 15's in a 9.5. ^3 ported no wall box 11.5 octo port.
    NOR CAL DB DRAG JUDGE
    http://www.dcsoundlab.com

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    Re: lots of port noise. help please

    Quote Originally Posted by sbarber82 View Post
    how do I check if I burnt a coil? I inspected.them when I removed them and nothing seemed off our smelled funny...
    Grab a dmm and ohm out each coil. Simplest and easiest way.

    -edit- got ninjad



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