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    frogcase2002's Avatar
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    inside the box

    Will the shape inside a box change the sound. I'm doing a new box soon and it will be pretty much the size of the trunk so there will be parts of the box that are smaller than others if you know what I'm saying. How would it compare to a box with the same volume and tuning but is just square or rectangle



    Head unit- cz702
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    Mids/highs amp- ppi a600.2 and ppi a200.2
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    Re: inside the box

    Can you provide a drawing or pic of what you mean?



    Alpine - ASE (local) - Batcap - C&D Tech - CT Sounds - DC - eD - Excessive Amperage - Rainbow

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    Re: inside the box

    more edges= more turbulence. I think hes saying he is going to make the edges of the box contour with the sides of the trunk/car




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    Re: inside the box

    As long as there is no severe differences in the changes, it should be fine but it's hard to tell without actually seeing it.



    Alpine - ASE (local) - Batcap - C&D Tech - CT Sounds - DC - eD - Excessive Amperage - Rainbow

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    Re: inside the box

    On my phone so cant put pictures right now. Ill try to explain better. Try to picture a set of stairs but just like 2 or 3 steps and make that a box..... There is the biggest area in the trunk were I always build my box. But there is the area in between the trunk and my fold down seats but its only like a foot high. So lets say when you open the trunk the box is 20" high and as wide as the trunk then goes back untill the end of the trunk then the box would go down to 12" high all he way to my back seats........ if I'm not explaining good I can try to get a pic up



    Head unit- cz702
    Speakers- 4 crescendo pwx. Aq tweeters
    Mids/highs amp- ppi a600.2 and ppi a200.2
    Sub- 2 12" zcons
    enclosure- in the works
    Sub amp- aq3500
    Alt- 220 amp
    Batts- 5 c&d 75ah and 1 bt-80
    Wiring- 4 runs of 0 awg and big 3

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    Buck's Avatar
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    Re: inside the box

    I understand. Just be careful with porting it. You can run into some strange tuning/response problems. There was a 72 caprice I worked on, someone had built a box for it where both the height and width shrank towards the front of the trunk. All the numbers where right, it sounded like crap though, and I'm pretty sure it was the way it was laid out.



    Alpine - ASE (local) - Batcap - C&D Tech - CT Sounds - DC - eD - Excessive Amperage - Rainbow

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    Re: inside the box

    I'm wanting to do another 4th order bp. So I mite be able to make the different sized part the sealed area and could make the ported area the square rest of the trunk. Not sure. Kinda new to 4th order bp's...... any good things to know about them???



    Head unit- cz702
    Speakers- 4 crescendo pwx. Aq tweeters
    Mids/highs amp- ppi a600.2 and ppi a200.2
    Sub- 2 12" zcons
    enclosure- in the works
    Sub amp- aq3500
    Alt- 220 amp
    Batts- 5 c&d 75ah and 1 bt-80
    Wiring- 4 runs of 0 awg and big 3

  8. #8
    Buck's Avatar
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    Re: inside the box

    Quote Originally Posted by frogcase2002 View Post
    I'm wanting to do another 4th order bp. So I mite be able to make the different sized part the sealed area and could make the ported area the square rest of the trunk. Not sure. Kinda new to 4th order bp's...... any good things to know about them???
    You should let me design it

    They can be overwhelming at first.



    Alpine - ASE (local) - Batcap - C&D Tech - CT Sounds - DC - eD - Excessive Amperage - Rainbow

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    Re: inside the box

    Quote Originally Posted by Buck View Post
    You should let me design it

    They can be overwhelming at first.
    I probably will. Would like to see how it compares to ones I have done(probably a lot better lol). A litttle off topic but when I try to figure out minimum port area for my box it comes out to 250 something. And ported section is only a little over 4 cubes..seems WAY off... made it so I can change ports so I'm still experimenting with different sizes and stuff



    Head unit- cz702
    Speakers- 4 crescendo pwx. Aq tweeters
    Mids/highs amp- ppi a600.2 and ppi a200.2
    Sub- 2 12" zcons
    enclosure- in the works
    Sub amp- aq3500
    Alt- 220 amp
    Batts- 5 c&d 75ah and 1 bt-80
    Wiring- 4 runs of 0 awg and big 3

  10. #10
    Buck's Avatar
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    Re: inside the box

    Quote Originally Posted by frogcase2002 View Post
    I probably will. Would like to see how it compares to ones I have done(probably a lot better lol). A litttle off topic but when I try to figure out minimum port area for my box it comes out to 250 something. And ported section is only a little over 4 cubes..seems WAY off... made it so I can change ports so I'm still experimenting with different sizes and stuff
    Just let me know, I love designing bandpasses.



    Alpine - ASE (local) - Batcap - C&D Tech - CT Sounds - DC - eD - Excessive Amperage - Rainbow

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