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Reload Thread: SEALED vs PORTED (basic info.)

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    *Honda*Bass*'s Avatar
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    Re: SEALED vs PORTED (basic info.)

    Hope they show this time.






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    Re: SEALED vs PORTED (basic info.)

    Yeah it's understandable enough.

    Seriously though, build or buy a sealed box until you can get a properly built ported box.



    Quote Originally Posted by Scoobydoo View Post
    Before poking fun at others at least learn to spell. I won't go into all the gammar mistakes!
    Irony?

    Quote Originally Posted by audioholic View Post
    Your sig... Im trying to figure out if you think he spelled grammar wrong. Because, he didn't. Irony indeed.

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    Re: SEALED vs PORTED (basic info.)

    Quote Originally Posted by tRiGgEr View Post
    Yeah it's understandable enough.

    Seriously though, build or buy a sealed box until you can get a properly built ported box.
    Yeah my friend has an extra one.... hopefully id be able to get it from him. What would happen to the subs having it in the ported box?



    94 Honda Accord LX
    HU: Alpine IVA-D310
    Front Stage:Polk Audio MM6 comps., DB1000 tweeters
    Back Stage: Polk Audio MMC690
    4ch. Amp: Alpine MRP-F240 and Alpine PDX 4.100
    Wires: Monster, mostly Stinger 1/0,
    Subs: 2- 15" Kicker L7's 4ohm
    Sub Amp: Hifonics BXI2607D
    Capacitor: Kole Audio CD-6
    Circuit Breaker: Stinger 150 amp
    Fuse/Dist. Block: Stinger SHD4AGU
    Battery: Kinetic HC600 and a Duracell
    Alternator: 160 amp Boss

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    Re: SEALED vs PORTED (basic info.)

    Quote Originally Posted by *Honda*Bass* View Post
    Yeah my friend has an extra one.... hopefully id be able to get it from him. What would happen to the subs having it in the ported box?
    If you're not sure of the actual tuning...

    1.) They can sound like crap
    2.) Mechanical failure(depending on the tunning)

    And due to improper tuning it may not be loud enough for you, so you are more likely to clip your signal trying to gain that missing output, or low end extension.



    Quote Originally Posted by Scoobydoo View Post
    Before poking fun at others at least learn to spell. I won't go into all the gammar mistakes!
    Irony?

    Quote Originally Posted by audioholic View Post
    Your sig... Im trying to figure out if you think he spelled grammar wrong. Because, he didn't. Irony indeed.

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    Re: SEALED vs PORTED (basic info.)

    Quote Originally Posted by tRiGgEr View Post
    If you're not sure of the actual tuning...

    1.) They can sound like crap
    2.) Mechanical failure(depending on the tunning)

    And due to improper tuning it may not be loud enough for you, so you are more likely to clip your signal trying to gain that missing output, or low end extension.
    1.)Okay... how do you determine what a box is tuned at?
    2.) Also if a box is sealed does that mean it is not tuned?
    3.)If not with a sealed box does different size sealed boxes sound better than others?

    btw thank you very much



    94 Honda Accord LX
    HU: Alpine IVA-D310
    Front Stage:Polk Audio MM6 comps., DB1000 tweeters
    Back Stage: Polk Audio MMC690
    4ch. Amp: Alpine MRP-F240 and Alpine PDX 4.100
    Wires: Monster, mostly Stinger 1/0,
    Subs: 2- 15" Kicker L7's 4ohm
    Sub Amp: Hifonics BXI2607D
    Capacitor: Kole Audio CD-6
    Circuit Breaker: Stinger 150 amp
    Fuse/Dist. Block: Stinger SHD4AGU
    Battery: Kinetic HC600 and a Duracell
    Alternator: 160 amp Boss

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    Re: SEALED vs PORTED (basic info.)

    ...



    94 Honda Accord LX
    HU: Alpine IVA-D310
    Front Stage:Polk Audio MM6 comps., DB1000 tweeters
    Back Stage: Polk Audio MMC690
    4ch. Amp: Alpine MRP-F240 and Alpine PDX 4.100
    Wires: Monster, mostly Stinger 1/0,
    Subs: 2- 15" Kicker L7's 4ohm
    Sub Amp: Hifonics BXI2607D
    Capacitor: Kole Audio CD-6
    Circuit Breaker: Stinger 150 amp
    Fuse/Dist. Block: Stinger SHD4AGU
    Battery: Kinetic HC600 and a Duracell
    Alternator: 160 amp Boss

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    Re: SEALED vs PORTED (basic info.)

    Quote Originally Posted by *Honda*Bass* View Post
    ...
    Do me a favor and start a new thread, as not to clutter this sticky.

    I will help you there.



    Quote Originally Posted by Scoobydoo View Post
    Before poking fun at others at least learn to spell. I won't go into all the gammar mistakes!
    Irony?

    Quote Originally Posted by audioholic View Post
    Your sig... Im trying to figure out if you think he spelled grammar wrong. Because, he didn't. Irony indeed.

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    SEALED vs PORTED basic info

    When the Sealed Deck Generator gets fully scripted using the proposed scripted language wink/hint to Detonator we might see fully configurable and possibility to simulate almost every game balance available.




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    Re: SEALED vs PORTED (basic info.)

    What About Two Boss 15 In A Box That 40l,20h,20d With One Port In The Middle That 4 Inch From Back Of Box And Its A Four Inch Round Whole Oe Tube




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    Re: SEALED vs PORTED (basic info.)

    Quote Originally Posted by ken2516 View Post
    What About Two Boss 15 In A Box That 40l,20h,20d With One Port In The Middle That 4 Inch From Back Of Box And Its A Four Inch Round Whole Oe Tube
    Boss 15's work best free air.



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    145.1 @ 42hz

    Refs: bonesninja

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    Re: SEALED vs PORTED (basic info.)

    I Eat Milk With My Cookies




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    Re: SEALED vs PORTED (basic info.)

    And last but not least, a Software to calculate your box demension based on speaker specs: WinISDPro

    Also calculates port length, diameter and shows a frequency graph

    Tons of different speakers brands included

    best of all, its FREE

    thanks to LinearTeam


    WinISDPro Download



    ----------------------
    my site: Crocusbag | Shop Smart. Save Money




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    Re: SEALED vs PORTED (basic info.)

    Few quick questions about ported boxes

    - Does the port location make much difference? I.E. front firing, top firing, rear firing or side firing
    - Does the port need to be a least one port diameter away from the box wall sides, rear wall and edge of sub?

    I heard this years ago and always made my ported this way, but i have a tricky install and wanted to know if any of these are true or would affect output/loudness or quality.

    Thanks




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    Re: SEALED vs PORTED (basic info.)

    Good information.



    02 4-Runner-Alpe CDE-HD148BT-Acntrl 3.2, Epictr, Alpe PDX F4 on Crssfre Sprates-Alpe PDX M12 on JL Audio HO210G-W3v3
    90 300zx-Alpe CDE-147BT-Acntrl 3.1, Epictr, Alpe PDR F50 on Crssfre Separates-Alpe PDR M65 on NVX XQW104 @35hz

    REFERENCES: BEATNOUTDAFRAME, VIVEET, CX-7HEAVEN, GMAN42, SUNDOWNZ, ZERMELO, M3NTAL, GAM3OVR, HEMI=22s, PROJECTPECKIN, KRISFNBZ, WHEELIEKING71, MR. RONIN-2U, ROBERTQ, DJM4RSHM21LOW, BLACKBONNIE, GYMFREAK101, STUCKINOK, SIACARMAN, ONEINTHESAC, 97SRAD750, ETC AND MANY MANY MORE[/FONT]
    Formerly cleansoundz

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    Re: SEALED vs PORTED (basic info.)

    Quote Originally Posted by jimmyjames1700 View Post
    Follow the link below and check out the tuning freq of their own recommended 32Hz tuned box with. Mathematically it is designed to be tuned at around 38Hz.

    http://www.jlaudio.com/subwoofers/pdfs/12W7_MAN.pdf

    In fact all W7's, or other supersubs for that matter, need to be designed with box tuning that much higher (6-7Hz).

    When we first started designing and building custom vented boxes for the W7's we wondered why the tuning always ended up way lower than predicted. In fact, the first 32Hz vented box we designed and built for a customers 12W7 ended being tuned at 26 Hz! It definitely perked my curiousity.

    So a after a quick call to Hector at JL we learned that simple port formulas or programs like BassBox Pro cannot accurately predict what a sub/box combination will do once current starts flowing through a subs Voice Coil. Thats why the big shot's use programs like Leap which take into account many other factors. Basically T/S parameters and box calculators just get you into the ball park.

    I've seen it first hand. All vented sub enclosures designed with port formulas our say BassBox Pro will tune lower than predicted. Most will tune about 10%-15% lower than predicted, with the supersubs usually being significantly more.
    Even 6 years later this information is still very relevant.



    02 4-Runner-Alpe CDE-HD148BT-Acntrl 3.2, Epictr, Alpe PDX F4 on Crssfre Sprates-Alpe PDX M12 on JL Audio HO210G-W3v3
    90 300zx-Alpe CDE-147BT-Acntrl 3.1, Epictr, Alpe PDR F50 on Crssfre Separates-Alpe PDR M65 on NVX XQW104 @35hz

    REFERENCES: BEATNOUTDAFRAME, VIVEET, CX-7HEAVEN, GMAN42, SUNDOWNZ, ZERMELO, M3NTAL, GAM3OVR, HEMI=22s, PROJECTPECKIN, KRISFNBZ, WHEELIEKING71, MR. RONIN-2U, ROBERTQ, DJM4RSHM21LOW, BLACKBONNIE, GYMFREAK101, STUCKINOK, SIACARMAN, ONEINTHESAC, 97SRAD750, ETC AND MANY MANY MORE[/FONT]
    Formerly cleansoundz

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