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    Attaching PVC to MDF

    I have my ports in, I caulked the hell out of them, using it as a glue. What else can I do to secure them to the box? They sit in each corner of the box, touching 2 sides of the walls, see the attachment. Thanks.
    Attached Thumbnails Attached Thumbnails Attaching PVC to MDF-sub_ports.png  



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    Re: Attaching PVC to MDF

    screw the PVC into the MDF lol. i dont know what else you could do... also try titanium silicon.



    back at it...

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    Re: Attaching PVC to MDF

    Two words - Gorilla Glue.



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    Re: Attaching PVC to MDF

    **** there is alot. Black silicone, first what i do not why do u guys make the holes so big.



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    Re: Attaching PVC to MDF

    Bigger holes = less air resistance. Gorilla Glue sounds good, but I checked this about 30 minutes ago, they aren't going anywhere. If they give ANY after the caulk fully cures, I'll gorilla glue them.

    The wait to try my 15"s in a ported box is killing me.



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    Re: Attaching PVC to MDF

    I'd jus use liquid nails...





    I'm lazy...

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    Re: Attaching PVC to MDF

    no, what i meant was why do u make the holes so big when u use the jigsaw.



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    Re: Attaching PVC to MDF

    Quote Originally Posted by Shyne151
    I'd jus use liquid nails...
    thats all i did with my girlfriends box, and its hanging fine.

    i made the hole extra small, then sanded it down till i could barely fit the PVC in the hole. nice and snug.

    sounds great and is working fine.




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    Re: Attaching PVC to MDF

    thats what I did, cept with clear silicon too.



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    Re: Attaching PVC to MDF

    Quote Originally Posted by LBX2G
    no, what i meant was why do u make the holes so big when u use the jigsaw.
    Didn't use a jigsaw. Used a drill with a special bit for making in-home PVC holes, so it was about 1/16 inch too big.


    But, here's the update!

    **** hell **** **** and other such expletives! This setup *****. The thing is half as loud as before, bass boost sounds like ****, and it's generally a very unpleasant bass! Oh, what to do.

    I went to a local dealer. He brought up the specs for the sub. It want 10.5 cubes PER SUB to be ported. My entire trunk my be 10 cubes. Gah. They also want 5 something per sub sealed. Well, ****. I'm going to lose the ports and polyfill the sucker.

    [documentation mode]
    To "properly" (heh!) close off the port holes, I used a combination of black fleece cloth, MDF, Caulk, sheet metal, and screws. I first covered a piece of MDF cut to fit in the hole with fleece covered in caulk, then I shoved the entire thing into the port hole. To be sure that this would go anywhere, I cut pieces of sheet metal, and screwed them onto the box and the plug. If I can get a digital camera, I'll take pictures.
    Last edited by Scarenius; 11-02-2004 at 08:29 PM. Reason: Don't need to know what to do anymore



    Current Setup
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    Re: Attaching PVC to MDF

    epoxy works wonders, fills gaps and strong as ****




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    Re: Attaching PVC to MDF

    what the hell sub do you have that requires 10.5 cubes???? unless you are going for a strict SPL set up i wouldnt do more then like 4 or 5 cubes ported.



    back at it...

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    Re: Attaching PVC to MDF

    actually homie imma show you waht this says right here


    http://www.electronixwarehouse.com/c...spl/elf-15.htm
    ^^ your sub correct ^^?

    if it is here look at the specs...

    SPL #ELF-15
    15" 700 Watt Subwoofer
    • 700 watts power handling
    • 80 oz. magnet
    • 2” kapton voice coil
    • Dual 4 ohm voice coil
    • Chrome plated basket
    • Polypropylene cone
    • Chrome front & back plate
    • Foam rubber slant surround
    • Black spider
    • Chrome push terminals
    • SPL 93 dB
    • [B]Sealed box: 2.5 cu. ft.[B]
    Ported box: 4.25 cu. ft.
    Tuning: 29 Hz
    Port size: 3” (dia) x 3.2” (length)
    • # of ports: 1

    so i dont know if that guy gave you the total cubic feet and you just thought he said per sub or what. but 4.25 @ 29 hz sounds not too shabby. holla.



    back at it...

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    Re: Attaching PVC to MDF

    I'd seen most of the specs, a lot of those are new to me. Not bad for a 70 dollar 15" sub. The price has dropped significantly since I bought them.

    As usual, the local shop was hella off. Some computer program they had with fancy charts and all that.

    Anyway, the box is HISTORY. I seriously don't think I can repair it anymore. It's a cheap prefab, and the rest of my cheap equipment is blowing the thing apart. I'm going to get some MDF when I get the chance and just build a new box.
    Last edited by Scarenius; 11-04-2004 at 06:35 PM.



    Current Setup
    "Power is probably the least efficient way of increasing SPL."
    - Jmac

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