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    lifted95's Avatar
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    Noob's got a couple of questions...

    I hear everyone talking about daily SPL and competion SPL, whats the difference and wouldn't everyone want comp because it's louder?

    Do you tune a box to the lowest Hz you can or is there a system to it?

    The manual for my L5 says it pounds the best in a 6cu. ft. box yet I can find no one on the forum with that setup... am I missing something?

    Thanks in advance.



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    Re: Noob's got a couple of questions...

    you can tune a box to w/e hz you want then build the box design for that hz i.e. 35 hz then your box will hit most output at that hz.




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    Re: Noob's got a couple of questions...

    Quote Originally Posted by lifted95 View Post
    I hear everyone talking about daily SPL and competion SPL, whats the difference and wouldn't everyone want comp because it's louder?
    what is loud to the ear may not necessarly but loud on a mic. lower freq. can sound louder but higher freqs. tend to read louder on the mic. that's why people have a comp. set up and a daily driving set up.

    Quote Originally Posted by lifted95 View Post
    Do you tune a box to the lowest Hz you can or is there a system to it?
    generally speaking the lower you tune a box (28-30 is my perference) the flater the response curve will be and the better the sound quality. spl guys will tune to a high freq to get a sharp peak on thier graph and burp the sub at that freq. in either case, whatever kind of music you listen to, if you have peak on your graph, you would want to tune ~5hz lower so that peak area is in your music's range. see the pic for winisd graph samples. some box and sub, just different tuning freqs.




    Quote Originally Posted by lifted95 View Post
    The manual for my L5 says it pounds the best in a 6cu. ft. box yet I can find no one on the forum with that setup... am I missing something?

    Thanks in advance.
    probably...there are a lot here with that sub...you'll find someone.
    Last edited by Trixter; 09-17-2006 at 12:40 PM.



    2006 Jeep Liberty
    Adire Audio, Cadence, Clarion, MB Quart

    Lv = [(14630000 x R^2) / (Fb^2 x Vb)] - 1.463R
    *Vb = vol. in cu"
    **R = sq.rt. A / Pi (for square/slot port)

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    Re: Noob's got a couple of questions...

    Quote Originally Posted by luvinthebass View Post
    you can tune a box to w/e hz you want then build the box design for that hz i.e. 35 hz then your box will hit most output at that hz.
    your setup will not necessarily have the most output at the box's tuning frequency.

    the box will be adding the most output at that point. in a proper setup the tuning frequency is at a point where the sub has started to roll off, and the added response will allow the frequency curve to remain somewhat flat for a longer period of time (lower). this will give you more low end response. but in car audio applications the tuning frequency is often chosen higher to account for cabin gain or to increase peak output. you could tune to a point that would make the tuning frequency the peak output frequency, but that is probably going to be way to high for daily use (but is often the strategy for spl competitors).




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    Re: Noob's got a couple of questions...

    Thanks for all your help, guys. I appreciate it.

    Trix- What program is that? it looks pretty sweet for designing sub boxes.

    I guess I have some more searching to do for that L5 setup.



    '95 Bronco: 6"lift/35s, Pioneer DEH P3600 Deck, Pioneer 3-way speakers, Clarion 400w 4-ch, small sub soon.

    '98 Integra: Kicker ZX750.1, Kicker 15" L5, 4-ch soon

    RF T10001bd just chillin...for sale?

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    Re: Noob's got a couple of questions...

    It's WinISD

    here's a free download.

    http://www.linearteam.dk/default.asp...load=winisdpro




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    Re: Noob's got a couple of questions...

    Not to mention that "most" not all spl competition vehicles arent very musical. You wouldnt want to listen to them all day or even across town.



    HU - Pioneer DEH P-5200

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    Re: Noob's got a couple of questions...

    Quote Originally Posted by MassOccur View Post
    It's WinISD

    here's a free download.

    http://www.linearteam.dk/default.asp...load=winisdpro
    SWEET! Thanks!



    '95 Bronco: 6"lift/35s, Pioneer DEH P3600 Deck, Pioneer 3-way speakers, Clarion 400w 4-ch, small sub soon.

    '98 Integra: Kicker ZX750.1, Kicker 15" L5, 4-ch soon

    RF T10001bd just chillin...for sale?

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    Trixter's Avatar
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    Re: Noob's got a couple of questions...

    Quote Originally Posted by lifted95 View Post
    Thanks for all your help, guys. I appreciate it.

    Trix- What program is that? it looks pretty sweet for designing sub boxes.

    I guess I have some more searching to do for that L5 setup.
    yeah...winisd. honestly, it's not that great.



    2006 Jeep Liberty
    Adire Audio, Cadence, Clarion, MB Quart

    Lv = [(14630000 x R^2) / (Fb^2 x Vb)] - 1.463R
    *Vb = vol. in cu"
    **R = sq.rt. A / Pi (for square/slot port)

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    Re: Noob's got a couple of questions...

    but remember winisd doesnt calculate the ports displacement so you have to adjust accordingly.




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