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Reload Thread: 12" XXX Ported Box tuned low...suggestions needed!

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    12" XXX Ported Box tuned low...suggestions needed!

    Things you should know first: I'm looking for SQL. I want a pretty low tuned ported box, I think. I have a specific set of dimensions I cannot exceed. These dimensions are: 17" wide, 19" tall, 13" deep = 2.43 cubic feet... NOW, if these dimensions are not adequate for the recommended box, I'll see where I can add a few inches.

    First question: What is the ideal volume for a ported 12xxx? I believe the RE site says 2.1 cubes, is that before or after sub displacement?

    Second Question: What should I have the port tuned to? I want SQL...I was thinking ~30hz. Should I just go for like a 40hz tuned box with a port plug to something like 30hz? It would be fun to go even louder every once in awhile

    Third Question: Who wants to draw up some plans for me? I'll give ya 5 or 8 bucks depending on how good you are



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    Re: 12" XXX Ported Box tuned low...suggestions needed!

    --i can i use my inventor program on my dads laptop..i can print it out and scan it for yaz if you'd like to and lay out all the pieces you'd need to build it

    not sure when i can get into it so if u can wait a day possibly 2 i can get it done for you

    --after port and sub displacement, i think you'd be looknig at around 1.5 cF or less - i came up with about 1.92 cF internally given those dimensions if it were a sealed box - then you have port and sub displacement to factor in too, see where u can add any little bit (even half an inch helps a ton)

    --i would tune to around 32 Hz for sql, maybe even up to 34..i have some calculators and i use.. about 6 to verify they all come to the same answer of port length to ensure its right

    im building a smaller ported box for my shocker, tuned to 40 hz or so (its not really a SQ sub) and right now only got a thunder 801d to toss around with it - gonna be building my box soon



    REF's
    Quote Originally Posted by cotjones View Post
    to answer someones question earlier.... after 194dBs your car no longer puts out sound, it puts out earthquakes

    Current Setup:
    Nakamichi CD-300, Coustic XM-3, Clarion EQS746, Coustic 510-DR, RE RE 6.5" Comps, Powerbass XA-900D, TCON Custom Subwoofer, Ported 1.5 to 30Hz

    Future Setup:
    In the works again

    WTB: Best Joke - Thread

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