5 sided sub box in a regular cab

Discussion in 'Interior/Electronics' started by silverblazer50, Jan 5, 2015.

  1. silverblazer50

    silverblazer50 Enthusiast

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    I have four dd eights, and it looks like the best option for me would be a five sided sub box. Was wondering if anyone has built one, and the best suggestion on mounting the frame to the back wall of the cab. Pull the bed off, and screw the sheet metal? Just for clarifacation, I will be sound deading and fiberglass the back wall.
     
    silverblazer50, Jan 5, 2015
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  3. Malandrin4o8

    Malandrin4o8 Newbie

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    Are you looking to do a blow through set up or install them inside the cab?
     
    Malandrin4o8, Jan 5, 2015
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  4. silverblazer50

    silverblazer50 Enthusiast

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    Inside the cab. It's a regular cab. Probably sealed, no vent.
     
    silverblazer50, Jan 5, 2015
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  5. Malandrin4o8

    Malandrin4o8 Newbie

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    I just did a box for mine for 2 8" soundqubed hds208 and I got about 1.85cu after sub displacement tuned to 33hz using a DIY aero port. I had them sealed at first and let me tell you go ported got about 2x louder ported then sealed. Do you have any rough dimension you would be using. Mine are 8" bottom,5"top,17.5"high and 44"wide and my subs barely fit. Here's a pic of mine have mounted using L brackets

    [​IMG]
     
    Malandrin4o8, Jan 5, 2015
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  6. silverblazer50

    silverblazer50 Enthusiast

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    Is there a reason that you didn't go down to the floor? I asume that your box sits on top of the trans tunnel?
     
    silverblazer50, Jan 6, 2015
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  7. Malandrin4o8

    Malandrin4o8 Newbie

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    Yea sits ontop of tran tunnel. I was gonna go to the floor but my bass amp didn't fit under the seat so it's mounted under box on one side and on other side I'm going to mount a second battery
     
    Malandrin4o8, Jan 6, 2015
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  8. silverblazer50

    silverblazer50 Enthusiast

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    Gotcha, do you have a bench seat, and is it all the way back?
     
    silverblazer50, Jan 6, 2015
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  9. Malandrin4o8

    Malandrin4o8 Newbie

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    Yes still have bench seat nd I had to move seat forward
     
    Malandrin4o8, Jan 6, 2015
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  10. silverblazer50

    silverblazer50 Enthusiast

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    Awesome, thanks for the info. How much power do you have on those subs?
     
    silverblazer50, Jan 6, 2015
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  11. Litneon

    Litneon Super Moderator Staff Member

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    The difference between a ported or sealed enclosure is dependent on a bunch of things. A ported enclosure isn't always "louder" or better.

    Some subs respond better in a ported enclosure and some can't handle it at all.

    You really need someone to design the box for you, at least give you some numbers....

    You have to start with your limitations. In your case, it's the space restraints.

    Once you know how much box volume you can create, then it's a matter of plugging in the numbers into a proper program. I personally use BassBox Pro. Once I pull up the Thiele/Small parameters and have the box volume, then I can calculate how many of the drivers is going to be most efficient, and what size the port needs to be IF it would be beneficial.

    I'd also need your amplifier situation and model numbers of the drivers.
     
    Litneon, Jan 7, 2015
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  12. Malandrin4o8

    Malandrin4o8 Newbie

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    I'm pushing around 1000watts to the pair, have them wired down at 1ohm on a hifonics Brutus brx2000.1d. Are your DD 1008s or 1508s
     
    Malandrin4o8, Jan 7, 2015
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  13. silverblazer50

    silverblazer50 Enthusiast

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    They are the 500 series. I have four of them. i am planning on running 400 watts to them for now.
     
    silverblazer50, Jan 7, 2015
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  14. Malandrin4o8

    Malandrin4o8 Newbie

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    Nice should get loud, those can get low and loud. Try emailing DD and ask them what's there recommended box size(cubic ft) per sub and see how much cubic ft you will have to work with behind your seat. Sometimes having more subs and not enough air space can be less loud than having less subs in there recommended air space.
     
    Malandrin4o8, Jan 7, 2015
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  15. silverblazer50

    silverblazer50 Enthusiast

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    My buddy is a dd dealer, he's going to help me with it. Just looking for ideas for what other people have done. Thanks!!!!
     
    silverblazer50, Jan 8, 2015
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  16. Malandrin4o8

    Malandrin4o8 Newbie

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    There's really not much we can do on these single cabs lol, have you thought about maybe going with bucket seats?
     
    Malandrin4o8, Jan 8, 2015
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  17. silverblazer50

    silverblazer50 Enthusiast

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    Kinda wanna keep the bench, never had one, think it will be cool.
     
    silverblazer50, Jan 8, 2015
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