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Reload Thread: 3.5 @ 35htz Design Help

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    3.5 @ 35htz Design Help

    Would anyone be able to help me with this design? It's for a single 15". I need it 3.5 @ 35htz, and no more than 19" in depth. All the designs I have found, have either been taken down, or are poorly made. If anyone could help me, that would be great, thanks.



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    Re: 3.5 @ 35htz Design Help

    You shouldn't be planning on running a 15 tuned to 35hz if you don't have about 9 cube gross to work with. It's too small for a 15" and too small to tune that low with adequate port area without taking up a lot of volume.




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    Re: 3.5 @ 35htz Design Help




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    Re: 3.5 @ 35htz Design Help

    Quote Originally Posted by hispls View Post
    You shouldn't be planning on running a 15 tuned to 35hz if you don't have about 9 cube gross to work with. It's too small for a 15" and too small to tune that low with adequate port area without taking up a lot of volume.
    I'm going by what is reccomended for the sub.



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    Re: 3.5 @ 35htz Design Help

    Quote Originally Posted by Silverado SS View Post
    Thanks Silverado, but the closest they have on there is 3.5 @ 32htz.



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    Re: 3.5 @ 35htz Design Help

    Quote Originally Posted by RedDiamond View Post
    I'm going by what is reccomended for the sub.
    Cool. Stop back and give us some Termlab scores or an RTA graph.




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    Re: 3.5 @ 35htz Design Help

    9 cubes?!
    It's a single 15...

    Quote Originally Posted by hispls View Post
    You shouldn't be planning on running a 15 tuned to 35hz if you don't have about 9 cube gross to work with. It's too small for a 15" and too small to tune that low with adequate port area without taking up a lot of volume.




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    Re: 3.5 @ 35htz Design Help

    Quote Originally Posted by hispls View Post
    You shouldn't be planning on running a 15 tuned to 35hz if you don't have about 9 cube gross to work with. It's too small for a 15" and too small to tune that low with adequate port area without taking up a lot of volume.
    I disagree.



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    Re: 3.5 @ 35htz Design Help




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    Re: 3.5 @ 35htz Design Help

    RE's box calculator would be a good example of one 'not' to use...
    It's results are not accurate.




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    Re: 3.5 @ 35htz Design Help

    Quote Originally Posted by n8skow View Post
    9 cubes?!
    It's a single 15...
    OK, that may be a little high, but consider about 2.5 cube for wood and bracing, .25-.4 cube for sub, then 1-2 cube for port. Whatever. Personally if I only had 3.5 cube to work with I'd be using a 12.




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    Re: 3.5 @ 35htz Design Help

    Quote Originally Posted by hispls View Post
    OK, that may be a little high, but consider about 2.5 cube for wood and bracing, .25-.4 cube for sub, then 1-2 cube for port. Whatever. Personally if I only had 3.5 cube to work with I'd be using a 12.
    op is talking about net vol im assuming.



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    Re: 3.5 @ 35htz Design Help

    Quote Originally Posted by RangerDangerV2 View Post
    op is talking about net vol im assuming.
    In 3.5 net I'd be on the fence between 10 and 12" In testing in 3.5 cube I meter higher with a 10 in the same box (same motor, softparts)..... of course excursion becomes a problem outside of tuning so I'd possibly do a 12 depending how much power was on tap.




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    Re: 3.5 @ 35htz Design Help

    Quote Originally Posted by hispls View Post
    In 3.5 net I'd be on the fence between 10 and 12" In testing in 3.5 cube I meter higher with a 10 in the same box (same motor, softparts)..... of course excursion becomes a problem outside of tuning so I'd possibly do a 12 depending how much power was on tap.
    we do 53's on music with 3.5 per chamber with many different types of 15s here in MN in a little red ranger.. 3.5 IMO is optimal for most 15s.
    3



    1999 Tahoe
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    Re: 3.5 @ 35htz Design Help

    Quote Originally Posted by RangerDangerV2 View Post
    we do 53's on music with 3.5 per chamber with many different types of 15s here in MN in a little red ranger.. 3.5 IMO is optimal for most 15s.
    3
    I'm sure that same vehicle would do the same numbers with 12's in the same box then. Smaller box = less output and steeper peak. 3.5 is generally MINIMUM for most 15's and IMO most manufacturers only just say that because people have their heart set on big subs to impress their buddies and won't know any better when the see the "recommended" specs. Kicker "recommends" 6 cube for solo X 18. Give that a whirl and let me know how that plays out.




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