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Reload Thread: 4th order 4 SE15's

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    4th order 4 SE15's

    sealed chambers are 4.95 ft^3 each with 2 subs shared space, vented chamber is 5.65 ft^3 tuned to 46 hz which should produce a nice band of ~25hz-80hz Port is 6.5" wide, 18" tall (117 in^2) 14" long kerfed on both ends with 3.5" radius


    what ya think... and to my experts... will it work?
    Attached Thumbnails Attached Thumbnails 4th order 4 SE15's-4th-order-4-se15s-2.jpg  
    Last edited by spencer321; 08-16-2009 at 11:19 PM.



    Quote Originally Posted by CantGetEnufBASS View Post
    yeah his story about 300 db's sounded a little funny, but now that i know he's using type-r's thats totally beliveable




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    Re: 4th order 4 SE15's

    box that big/ blow thru??
    why kerf ports?



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    Re: 4th order 4 SE15's

    is to the left and right of the port 2 big areas of wasted space??



    Refs: Projectpat, XylerB, decipha, blados, protonman, Wlmrs, Nucleareskimo, gl0ck, mobeious, JBizzle (picked up box) mlstrass (box design) Mazzasec (bought 18" RD Alpha from him) SKMFKR: Traded subs Wrenchguy: Sold 18" Q to him. psychoacoustics: bought some bullet horn tweets from him Shinju: bought some 0awg wire from him. Sold a box and 18" HDC318 to chitown_impala. Bought my 2 custom 15's from 99Vic on steave meade forum. NJTStang11- picked up 18" SSX and box from him krispy cream SCAMMED ME $200!!!





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    Re: 4th order 4 SE15's

    yeah, well i have no intentions of cutting up my truck at the moment, but it would be easy for me since i've already got the weather proof fiberglass lid for the bed.

    a question more blow thru oriented... anything wrong with using say 2 huge (8" for instance) aero ports and especially in a 4th order... using an 8" circle jig and running JUST the ports thru the cab for a "blow thru" or would that just ****.



    Quote Originally Posted by CantGetEnufBASS View Post
    yeah his story about 300 db's sounded a little funny, but now that i know he's using type-r's thats totally beliveable

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    Re: 4th order 4 SE15's

    Quote Originally Posted by snb778 View Post
    is to the left and right of the port 2 big areas of wasted space??
    yeah... had nothing else to do with it, wanted to the port external n free flowing, and if i ever did it as a blow thru i would cut just enough for the center section of the port(8"x19.5") and not a huge 4' wide hole in the cab



    Quote Originally Posted by CantGetEnufBASS View Post
    yeah his story about 300 db's sounded a little funny, but now that i know he's using type-r's thats totally beliveable

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    Re: 4th order 4 SE15's

    you could do that.. just build the port and lose the empty space... yea it would look different, but it'd give you some room to mount some batts maybe?? possibly interchangeable ports with that design also... has the potential



    Refs: Projectpat, XylerB, decipha, blados, protonman, Wlmrs, Nucleareskimo, gl0ck, mobeious, JBizzle (picked up box) mlstrass (box design) Mazzasec (bought 18" RD Alpha from him) SKMFKR: Traded subs Wrenchguy: Sold 18" Q to him. psychoacoustics: bought some bullet horn tweets from him Shinju: bought some 0awg wire from him. Sold a box and 18" HDC318 to chitown_impala. Bought my 2 custom 15's from 99Vic on steave meade forum. NJTStang11- picked up 18" SSX and box from him krispy cream SCAMMED ME $200!!!





    2 Pistol Shrimps in a 4.0 cu^ft box tuned to 32 hz for the WIN !!

    "You can't compare, don't stare, cause I got the ultimate Mary Jane"

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    Re: 4th order 4 SE15's

    Contact 80inches



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    Re: 4th order 4 SE15's

    box should work but you are defeating the main purpose of most 4th order builds /directed output ??
    idk g/l with it
    might work well in a 2 dr Tahoe/Yukon or a 2dr Bronco



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    Re: 4th order 4 SE15's

    what do you mean by directed output?

    Let me clear it up, it was designed with blow thru in mind, i have no intentions of building it at the moment i've just never designed a 4th order, done bunched of vented and sealed boxes so i figured i'd give it a shot.



    Quote Originally Posted by CantGetEnufBASS View Post
    yeah his story about 300 db's sounded a little funny, but now that i know he's using type-r's thats totally beliveable

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    Re: 4th order 4 SE15's

    well after you nail down the dims of box and tunning lose the kerfs /yes look cool but not pratical for blow thru unless you will cut out all the way accross /second when you build it do not cover those "dead" spaces on sides of port leave open and build ampracks and batt storage and yes hit up 80 lol



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    Re: 4th order 4 SE15's

    ok the sketchup is awesome...but wats with the large kerfs...and alll the bracing...i know u have to brace but thats more than overkill...dont kerf that area cuz thats usable ported area being blocked...ur ported area looks to small as it is..dont kerf those ares..just clam shell the 15's and use the rest of the air space as ported area..and make the port as big as u can

    80




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    Re: 4th order 4 SE15's

    I'd rather have too much bracing than not enough but i admit its overkill...

    lose the kerfs i got that much but are you saying just run the full width of the vented area straight out?

    also since your the resident 4th order person (or so i've read in many threads)

    is there an issue with using aeros instead of a huge slot port

    btw as is its 20in^2 / ft^3 on the port, i dunno is there a different set of recommended when doing a 4th order?



    Quote Originally Posted by CantGetEnufBASS View Post
    yeah his story about 300 db's sounded a little funny, but now that i know he's using type-r's thats totally beliveable

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    Re: 4th order 4 SE15's

    Quote Originally Posted by spencer321 View Post
    what do you mean by directed output?

    Let me clear it up, it was designed with blow thru in mind,entio i have no intns of building it at the moment i've just never designed a 4th order, done bunched of vented and sealed boxes so i figured i'd give it a shot.
    so ??? this is what just a warm up for the real tread in what? 6 mo?
    a year?lol iv'e heard of pre planning a project but d@mn all that modeling in sketchup for a pipe dream ?? lol w/e g/l with build* edit* with immaginary build.



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    Re: 4th order 4 SE15's

    is there an issue with having plenty of designs and ideas so when the time comes you can choose the best one? i'd rather "pre plan imaginary" installs than actually waste money buying and reselling like most.



    Quote Originally Posted by CantGetEnufBASS View Post
    yeah his story about 300 db's sounded a little funny, but now that i know he's using type-r's thats totally beliveable

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    Re: 4th order 4 SE15's

    Quote Originally Posted by spencer321 View Post
    I'd rather have too much bracing than not enough but i admit its overkill...
    understood....

    lose the kerfs i got that much but are you saying just run the full width of the vented area straight out? u can keep the kerfs just dont make them that big...no dont have the full width striaght out kuz then it will be just a sealed box pushed all the way back..lol

    also since your the resident 4th order person (or so i've read in many threads)
    is there an issue with using aeros instead of a huge slot port
    u can use aero's ..but u will need atleast 8 6inch aero ports

    20in^2 / ft^3 on the port,wats this?...i hope thats not the port size
    80




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