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    argenis69's Avatar
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    Icon32 Box Tuning question

    Hello, As you know I have a 02 Nissan Maxima with a 15" Fi SP4 in a 3.5 cu ft flare port box powered with a 3500 Crescendo amp(check my signature).

    I would like to know what's the best frequency to tune this box to get the maximum loudest bass output with decent sq?

    Thank you.



    02 Nissan Maxima
    HU JVC KW-AV61BT.
    Front stage Image Dynamics 6.5 CX62 V2. Rear stage O2 Audio 5 1/4in.
    Cadence Tweeters. KnuKonceptz Rcas and Wiring.
    Kicker Impulse x3i 3-way Active Electronic Crossover(disconnected for now).
    JL Audio 300/4 . Crescendo BC3500D.
    15" Fi Audio SP4 fully loaded in 3.5cu ft flared ported box.
    200 amp HO Alt. One complete +/- run of Knu Ofc 0 gauge with big 3, volt meter inside, biggest acid battery under hood, Battery Isolator. A XS Power D3100 and a Crescendo Logic F-31HP battery in trunk.




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    Dmac1991's Avatar
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    Re: Box Tuning question

    33-34hz ish




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    Re: Box Tuning question

    One question, I have some curiosity about how does the tuning work, the higher the louder? Or how does it work?



    02 Nissan Maxima
    HU JVC KW-AV61BT.
    Front stage Image Dynamics 6.5 CX62 V2. Rear stage O2 Audio 5 1/4in.
    Cadence Tweeters. KnuKonceptz Rcas and Wiring.
    Kicker Impulse x3i 3-way Active Electronic Crossover(disconnected for now).
    JL Audio 300/4 . Crescendo BC3500D.
    15" Fi Audio SP4 fully loaded in 3.5cu ft flared ported box.
    200 amp HO Alt. One complete +/- run of Knu Ofc 0 gauge with big 3, volt meter inside, biggest acid battery under hood, Battery Isolator. A XS Power D3100 and a Crescendo Logic F-31HP battery in trunk.

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    hispls's Avatar
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    Re: Box Tuning question

    3.5 is a bit small for a 15.




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    argenis69's Avatar
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    Re: Box Tuning question

    Yes, I was trying to save trunk space.



    02 Nissan Maxima
    HU JVC KW-AV61BT.
    Front stage Image Dynamics 6.5 CX62 V2. Rear stage O2 Audio 5 1/4in.
    Cadence Tweeters. KnuKonceptz Rcas and Wiring.
    Kicker Impulse x3i 3-way Active Electronic Crossover(disconnected for now).
    JL Audio 300/4 . Crescendo BC3500D.
    15" Fi Audio SP4 fully loaded in 3.5cu ft flared ported box.
    200 amp HO Alt. One complete +/- run of Knu Ofc 0 gauge with big 3, volt meter inside, biggest acid battery under hood, Battery Isolator. A XS Power D3100 and a Crescendo Logic F-31HP battery in trunk.

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    argenis69's Avatar
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    Re: Box Tuning question

    ???



    02 Nissan Maxima
    HU JVC KW-AV61BT.
    Front stage Image Dynamics 6.5 CX62 V2. Rear stage O2 Audio 5 1/4in.
    Cadence Tweeters. KnuKonceptz Rcas and Wiring.
    Kicker Impulse x3i 3-way Active Electronic Crossover(disconnected for now).
    JL Audio 300/4 . Crescendo BC3500D.
    15" Fi Audio SP4 fully loaded in 3.5cu ft flared ported box.
    200 amp HO Alt. One complete +/- run of Knu Ofc 0 gauge with big 3, volt meter inside, biggest acid battery under hood, Battery Isolator. A XS Power D3100 and a Crescendo Logic F-31HP battery in trunk.

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    argenis69's Avatar
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    Re: Box Tuning question

    I have some curiosity about how does the box tuning work, the higher the hz the louder? Or how does it work?



    02 Nissan Maxima
    HU JVC KW-AV61BT.
    Front stage Image Dynamics 6.5 CX62 V2. Rear stage O2 Audio 5 1/4in.
    Cadence Tweeters. KnuKonceptz Rcas and Wiring.
    Kicker Impulse x3i 3-way Active Electronic Crossover(disconnected for now).
    JL Audio 300/4 . Crescendo BC3500D.
    15" Fi Audio SP4 fully loaded in 3.5cu ft flared ported box.
    200 amp HO Alt. One complete +/- run of Knu Ofc 0 gauge with big 3, volt meter inside, biggest acid battery under hood, Battery Isolator. A XS Power D3100 and a Crescendo Logic F-31HP battery in trunk.

  9. #8
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    Re: Box Tuning question

    Quote Originally Posted by hispls View Post
    3.5 is a bit small for a 15.
    I know you're knowledgeable but since when is 3.5 cubes too small for a 15"? 2.5 cubes is recommended for the Type R 15", and I'd have to say most 15" will work great in 3 cubes, let alone 3.5.



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    Re: Box Tuning question

    Anybody?



    02 Nissan Maxima
    HU JVC KW-AV61BT.
    Front stage Image Dynamics 6.5 CX62 V2. Rear stage O2 Audio 5 1/4in.
    Cadence Tweeters. KnuKonceptz Rcas and Wiring.
    Kicker Impulse x3i 3-way Active Electronic Crossover(disconnected for now).
    JL Audio 300/4 . Crescendo BC3500D.
    15" Fi Audio SP4 fully loaded in 3.5cu ft flared ported box.
    200 amp HO Alt. One complete +/- run of Knu Ofc 0 gauge with big 3, volt meter inside, biggest acid battery under hood, Battery Isolator. A XS Power D3100 and a Crescendo Logic F-31HP battery in trunk.

  11. #10
    NASTY08IMPALA's Avatar
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    Re: Box Tuning question

    Quote Originally Posted by argenis69 View Post
    Anybody?
    Loud in terms of htz isnt really relevant here...say ur car peaks at 50 and mine peaks at 40. i will lose output past 40 and you will gain the closer u get to 50.make sense?




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    argenis69's Avatar
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    Re: Box Tuning question

    Quote Originally Posted by NASTY08IMPALA View Post
    Loud in terms of htz isnt really relevant here...say ur car peaks at 50 and mine peaks at 40. i will lose output past 40 and you will gain the closer u get to 50.make sense?
    Makes sense, but is there more or less a standard tuning frequency where the subs tend to have better output no matter the vehicle or environment?



    02 Nissan Maxima
    HU JVC KW-AV61BT.
    Front stage Image Dynamics 6.5 CX62 V2. Rear stage O2 Audio 5 1/4in.
    Cadence Tweeters. KnuKonceptz Rcas and Wiring.
    Kicker Impulse x3i 3-way Active Electronic Crossover(disconnected for now).
    JL Audio 300/4 . Crescendo BC3500D.
    15" Fi Audio SP4 fully loaded in 3.5cu ft flared ported box.
    200 amp HO Alt. One complete +/- run of Knu Ofc 0 gauge with big 3, volt meter inside, biggest acid battery under hood, Battery Isolator. A XS Power D3100 and a Crescendo Logic F-31HP battery in trunk.

  13. #12
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    Re: Box Tuning question

    Quote Originally Posted by argenis69 View Post
    Makes sense, but is there more or less a standard tuning frequency where the subs tend to have better output no matter the vehicle or environment?
    All depends on the sub ..and type of music u listen too but id say 35 is a good middle ground..the sp4 is a low end monster and does well tuned low if i were u id bump it up to 4-4.5 cubes at 35 and you should see greater output




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    Re: Box Tuning question

    This is why you should have a box built around your cars cabin gain... Not all shops do it tho...




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    Re: Box Tuning question

    Quote Originally Posted by NASTY08IMPALA View Post
    All depends on the sub ..and type of music u listen too but id say 35 is a good middle ground..the sp4 is a low end monster and does well tuned low if i were u id bump it up to 4-4.5 cubes at 35 and you should see greater output
    Thanks, but I need the trunk space. Does it help and make a big difference to tune it to 35 hz in the 3.5 cubic feet enclosure I already have?



    02 Nissan Maxima
    HU JVC KW-AV61BT.
    Front stage Image Dynamics 6.5 CX62 V2. Rear stage O2 Audio 5 1/4in.
    Cadence Tweeters. KnuKonceptz Rcas and Wiring.
    Kicker Impulse x3i 3-way Active Electronic Crossover(disconnected for now).
    JL Audio 300/4 . Crescendo BC3500D.
    15" Fi Audio SP4 fully loaded in 3.5cu ft flared ported box.
    200 amp HO Alt. One complete +/- run of Knu Ofc 0 gauge with big 3, volt meter inside, biggest acid battery under hood, Battery Isolator. A XS Power D3100 and a Crescendo Logic F-31HP battery in trunk.

  16. #15
    argenis69's Avatar
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    Re: Box Tuning question

    Quote Originally Posted by tc300 View Post
    This is why you should have a box built around your cars cabin gain... Not all shops do it tho...
    I did that, I'm just curious with the tuning subject.



    02 Nissan Maxima
    HU JVC KW-AV61BT.
    Front stage Image Dynamics 6.5 CX62 V2. Rear stage O2 Audio 5 1/4in.
    Cadence Tweeters. KnuKonceptz Rcas and Wiring.
    Kicker Impulse x3i 3-way Active Electronic Crossover(disconnected for now).
    JL Audio 300/4 . Crescendo BC3500D.
    15" Fi Audio SP4 fully loaded in 3.5cu ft flared ported box.
    200 amp HO Alt. One complete +/- run of Knu Ofc 0 gauge with big 3, volt meter inside, biggest acid battery under hood, Battery Isolator. A XS Power D3100 and a Crescendo Logic F-31HP battery in trunk.

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