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    420 SQ inches

    420 sq in of port good for 1 hdc3 10 tuned to 39.5 hz in 1.5 cubic ft?


    just want to know if i did my math right and this all makes sense lol



    TL SCORE-142.0 sealed box 2 15, AA chaos,saz1500d on music legal
    -Current set up----------------Digital Designs 9515g ///
    -----------------------------------saz1500dx2 soon to be strapped at 1 ohm
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    Quote Originally Posted by SicAudio View Post
    stupid nigger shoulda been smart enough not to have the shit in his car un-attended
    ---------MAXXSONICS_FTMFW------------
    Sold too=kickerman09x2 Bought from=Galacticmonkeyx2, sundownz, 350zpsl, retroaudioinc, zade08, SWFL, amartin_72, kickerman09,waggsmcgee,jpd2621




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    Re: 420 SQ inches

    Quote Originally Posted by Firtyfwe View Post
    420 sq in of port good for 1 hdc3 10 tuned to 39.5 hz in 1.5 cubic ft?


    just want to know if i did my math right and this all makes sense lol
    I think you messed up somewhere lol. Are you talking about port area? Because you should only need about 24" of port area. And the port length should be about 23" for a slot port, and 24" for an L port.



    ~~~~~~~~~~~~
    Equipment for sale-220A alt, Eminence Delta 10" speakers, BNIB MB Quart Q4.80, (2) IA 20.1's (Newest Version), SI BM Motor w/ Basket, (2) Deka Intimidator G31 Batts, 2 RD Sonance 15's with baskets (need recone).
    ~~~~~~~~~~~~
    Refs: Scott S, hornedfrog1985, dsmdan, Newageking, DBboom, R/T Pimp, SQcrewcab, Bumpin Buick, tangelo95, fearof85,
    coma_toast, Blackga, spy, LouisianaCRX, Oxsign, etc...

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    PV Audio's Avatar
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    Re: 420 SQ inches

    Umm...do you mean 024 instead of 420? Do you realize how much port area 420 square inches is.




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    Re: 420 SQ inches

    well yea i guess i ****ed up some how here are the dimensions of the port

    2 wide
    10.5 height
    20 length

    sound about right for 1.5 cubic feet?



    TL SCORE-142.0 sealed box 2 15, AA chaos,saz1500d on music legal
    -Current set up----------------Digital Designs 9515g ///
    -----------------------------------saz1500dx2 soon to be strapped at 1 ohm
    -----------------------------------crunch1000.2 on AB SQ6Bs
    ------------------------------------DC POWER 270xp for the "rolla" waiting one one tiny bracket
    Quote Originally Posted by SicAudio View Post
    stupid nigger shoulda been smart enough not to have the shit in his car un-attended
    ---------MAXXSONICS_FTMFW------------
    Sold too=kickerman09x2 Bought from=Galacticmonkeyx2, sundownz, 350zpsl, retroaudioinc, zade08, SWFL, amartin_72, kickerman09,waggsmcgee,jpd2621

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    Re: 420 SQ inches

    how the hell did you get that?



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    Re: 420 SQ inches

    very poor math skills and probably smoking way too much



    TL SCORE-142.0 sealed box 2 15, AA chaos,saz1500d on music legal
    -Current set up----------------Digital Designs 9515g ///
    -----------------------------------saz1500dx2 soon to be strapped at 1 ohm
    -----------------------------------crunch1000.2 on AB SQ6Bs
    ------------------------------------DC POWER 270xp for the "rolla" waiting one one tiny bracket
    Quote Originally Posted by SicAudio View Post
    stupid nigger shoulda been smart enough not to have the shit in his car un-attended
    ---------MAXXSONICS_FTMFW------------
    Sold too=kickerman09x2 Bought from=Galacticmonkeyx2, sundownz, 350zpsl, retroaudioinc, zade08, SWFL, amartin_72, kickerman09,waggsmcgee,jpd2621

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    Re: 420 SQ inches

    Quote Originally Posted by Firtyfwe View Post
    well yea i guess i ****ed up some how here are the dimensions of the port

    2 wide
    10.5 height
    20 length

    sound about right for 1.5 cubic feet?
    Yes that is correct! When you do port area you do the Height X Width. Port length isnt calculated into this number.

    Just an FYI: The port you said would be like 42" tall by 10" wide for example. Lol. Itd be a lil big for that 10 haha



    ~~~~~~~~~~~~
    Equipment for sale-220A alt, Eminence Delta 10" speakers, BNIB MB Quart Q4.80, (2) IA 20.1's (Newest Version), SI BM Motor w/ Basket, (2) Deka Intimidator G31 Batts, 2 RD Sonance 15's with baskets (need recone).
    ~~~~~~~~~~~~
    Refs: Scott S, hornedfrog1985, dsmdan, Newageking, DBboom, R/T Pimp, SQcrewcab, Bumpin Buick, tangelo95, fearof85,
    coma_toast, Blackga, spy, LouisianaCRX, Oxsign, etc...

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    Re: 420 SQ inches

    cool cool thanks man i rally wanted to use a 8 inch flared aero but it says id need 50+ inches length of port to achieve a 40 hz tuning lol



    TL SCORE-142.0 sealed box 2 15, AA chaos,saz1500d on music legal
    -Current set up----------------Digital Designs 9515g ///
    -----------------------------------saz1500dx2 soon to be strapped at 1 ohm
    -----------------------------------crunch1000.2 on AB SQ6Bs
    ------------------------------------DC POWER 270xp for the "rolla" waiting one one tiny bracket
    Quote Originally Posted by SicAudio View Post
    stupid nigger shoulda been smart enough not to have the shit in his car un-attended
    ---------MAXXSONICS_FTMFW------------
    Sold too=kickerman09x2 Bought from=Galacticmonkeyx2, sundownz, 350zpsl, retroaudioinc, zade08, SWFL, amartin_72, kickerman09,waggsmcgee,jpd2621

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    PV Audio's Avatar
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    Re: 420 SQ inches

    Why the hell do you need an 8" aero for a 10" speaker?




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    Re: 420 SQ inches

    Yea you would only need a 4" at most



    ~~~~~~~~~~~~
    Equipment for sale-220A alt, Eminence Delta 10" speakers, BNIB MB Quart Q4.80, (2) IA 20.1's (Newest Version), SI BM Motor w/ Basket, (2) Deka Intimidator G31 Batts, 2 RD Sonance 15's with baskets (need recone).
    ~~~~~~~~~~~~
    Refs: Scott S, hornedfrog1985, dsmdan, Newageking, DBboom, R/T Pimp, SQcrewcab, Bumpin Buick, tangelo95, fearof85,
    coma_toast, Blackga, spy, LouisianaCRX, Oxsign, etc...

  11. #11
    IMOVeCHICKENS!'s Avatar
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    Re: 420 SQ inches

    Quote Originally Posted by PV Audio View Post
    Why the hell do you need an 8" aero for a 10" speaker?
    the wow factor but i guess itll have to wait till i get a second 10 from AQ


    for the pair 20 in's of 8 inch port for 3 cubes after sub and port displacement gets me like 39-41 hz



    TL SCORE-142.0 sealed box 2 15, AA chaos,saz1500d on music legal
    -Current set up----------------Digital Designs 9515g ///
    -----------------------------------saz1500dx2 soon to be strapped at 1 ohm
    -----------------------------------crunch1000.2 on AB SQ6Bs
    ------------------------------------DC POWER 270xp for the "rolla" waiting one one tiny bracket
    Quote Originally Posted by SicAudio View Post
    stupid nigger shoulda been smart enough not to have the shit in his car un-attended
    ---------MAXXSONICS_FTMFW------------
    Sold too=kickerman09x2 Bought from=Galacticmonkeyx2, sundownz, 350zpsl, retroaudioinc, zade08, SWFL, amartin_72, kickerman09,waggsmcgee,jpd2621

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    Re: 420 SQ inches

    So you want them to say "wow your retarded for using that big of a port" lol.



    ~~~~~~~~~~~~
    Equipment for sale-220A alt, Eminence Delta 10" speakers, BNIB MB Quart Q4.80, (2) IA 20.1's (Newest Version), SI BM Motor w/ Basket, (2) Deka Intimidator G31 Batts, 2 RD Sonance 15's with baskets (need recone).
    ~~~~~~~~~~~~
    Refs: Scott S, hornedfrog1985, dsmdan, Newageking, DBboom, R/T Pimp, SQcrewcab, Bumpin Buick, tangelo95, fearof85,
    coma_toast, Blackga, spy, LouisianaCRX, Oxsign, etc...

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    Re: 420 SQ inches

    wow. Yeah square as in square inches means multiplying two sides of something, not three- thats cubes. 2 by 10.5 would be 21 square inches and 420 cubic inches for a 20" long port. To use the 8" aero you would need two big tens, but this type of box makes them LOUD. One 6" works good for a big 10, usually sacrificing some SQ- big ports on small boxes usually dont sound the best.




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    James Bang's Avatar
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    Re: 420 SQ inches

    I didn't know you could measure SQ by inches.




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    Re: 420 SQ inches

    This box was built for two HDC3 10's getting 1500RMS each. 2.9 cubes. Its hard to get down in the 38hz range with a huge port and still fit two big subs in there. It helps large sub boxes get loud when they don't need 20" long ports for 38hz tuning, even given the same square inches of port per cube.








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