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  1. #1

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    Default Using 2 sheets mdf for small sub box

    Will be making a new sub box for a 8 inch mm840 polk audio subwoofer. The size box 0.35 cu ft,which polk audio states. If i made it using 2 sheets 3/4 mdf board,would it distort the sound or would it be more detailed?. Would love to hear answers back.

  2. #2

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    Nothing yet

  3. #3

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    I don't really understand what you are asking, can you be a dit clearer?
    Why would you need 2 sheets of mdf to make a .35ft3 box?

  4. #4

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    I made my sub box a hair to small, if i put 1 more sheet of mdf on 3 sides,it will fit perfect,and it will be easy to do. So today i did it and smoothed it all out.you would never know. At this point my subwoofer has not got here yet. Ordered it. So now did i change the sound of the box? I guess when the sub gets here i will find out.

  5. #5

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    hhhmmmm...okk....

  6. #6

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    Not sure what you're asking man. Please choose your words carefully and clarify what you are asking.
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  7. #7

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    Very simple. If you read it. If you doubled the box with 2 layers of mdf board what would it sound like? Too simple. I can answer it myself now i already build it. It sounds more tighter and detailed than my other box. I wasnt sure if it would,and i was thinking that someone out there might have tryed this before i did it. Thanks anyway.

  8. #8

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    Quote Originally Posted by LONG TIME BUYER View Post
    Very simple. If you read it. If you doubled the box with 2 layers of mdf board what would it sound like? Too simple. I can answer it myself now i already build it. It sounds more tighter and detailed than my other box. I wasnt sure if it would,and i was thinking that someone out there might have tryed this before i did it. Thanks anyway.
    I'm glad your subwoofer sounds better in the new box. I think the confusion came in your original post. If you had phrased it as, I plan on doubling the thickness of the subwoofer enclosure by using double layers of MDF. You may have gotten the appropriate responses you were looking for.
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  9. #9

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    it threw me off too , I read two sheets I was thinking of standard 4x8' sheets , not just building it double wall .
    I am surprised that small a box benifitted from a 1.5 vs .75 wall , I would figure if it helped it it would be more detailed

  10. #10

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    doubling the wall thickness should stiffen the box, no negative effects.

  11. #11

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    The thicker the better is the answer

  12. #12

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    I cant see a 8" being effected , I put a brace every six inches
    IMHO internall braces are easier and more effective than double walls
    A kick said thicker is always better

  13. #13

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    With an enclosure that small, its a waste of mdf to add a second layer all around. You should hear any difference. If you are worried that the internal dimensions are too small, you can add some poly fill inside the enclosure.

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