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    ryanthie's Avatar
    ryanthie is offline Needs moar loud



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    Port Question for my new box...

    I built a nice temp box for my Obsidian 18... Very temporary, especially after I only got a 138.5 @44 out of it with mic on the dash and driver door open... Anyway, new box time! Box now is 4.9 cubes before displacement, 6 inch PVC port @11 inches long

    Before sub displacement, I've got it set up to be about 5.35 cubes. So after displacement, it's 5.10 cubes...
    Not sure on what width I should do for the port... I planned it out with a 4 inch wide port and it ends up at 21.6 inches long at 31hz... I feel like this will just be too much port area for 5 cubes. I'm new to box building! Really unhappy with my SPL score and trying to make a hell of a nice box now that will at least get me into the 140's... Hoping for a 142+ at this point. What size port should I do?
    Box specs 33w 25l 14h

    Help?



    2003 Mazda Protege
    Sky High 1/0 OFC
    Big 3 w/sky high 0g
    2 Sundown X 12s in small temporary box
    DC 5.0K
    Kenwood KDCX998
    Hertz ESK16.5 components
    Digital Designs C2C on front set
    144.4 legal @32hz. 147.0 USACI style on music




  2. #2
    slvrado28z's Avatar
    slvrado28z is offline CarAudio.com Elite



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    Re: Port Question for my new box...

    i would use the 6in



    2008 Silverado crew cab
    dash - Pioneer avh-p3200
    Front & rear - Alpine spr-17s 6.5
    Amps - rf t2500bdcp, rf p600.4
    Subs - 2 15" Incriminator Audio Death Row
    box- 13 cu ft net tuned to 35hz

  3. #3
    ryanthie's Avatar
    ryanthie is offline Needs moar loud

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    Re: Port Question for my new box...

    Quote Originally Posted by pimpala22 View Post
    i would use the 6in
    I was thinking about it... It'd use less box space. I kind of just wanted to try and do a slot port to give it a try.
    And the fact a PVC port isn't much different than a slot port since I have no flares.



    2003 Mazda Protege
    Sky High 1/0 OFC
    Big 3 w/sky high 0g
    2 Sundown X 12s in small temporary box
    DC 5.0K
    Kenwood KDCX998
    Hertz ESK16.5 components
    Digital Designs C2C on front set
    144.4 legal @32hz. 147.0 USACI style on music

  4. #4
    slvrado28z's Avatar
    slvrado28z is offline CarAudio.com Elite



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    Re: Port Question for my new box...

    slot port will make your box smaller..but would prob be better.



    2008 Silverado crew cab
    dash - Pioneer avh-p3200
    Front & rear - Alpine spr-17s 6.5
    Amps - rf t2500bdcp, rf p600.4
    Subs - 2 15" Incriminator Audio Death Row
    box- 13 cu ft net tuned to 35hz

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    Electrodynamic's Avatar
    Electrodynamic is offline Knows nothing



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    Re: Port Question for my new box...

    I recommend using what we have listed in our Technical Web page about ports: Click me for the link.



    Electrodynamic
    "On a long enough timeline, the survival rate of everyone drops to zero."
    Owner Stereo Integrity
    Co-owner Obsidian Car Audio
    Associate Sundown Audio
    Simon Eichenberger is my hero
    Power handling is not a power requirement! Don't install suckage!

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