Using 2 sheets mdf for small sub box
edited May 2014 in Custom Fabrication
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.
Post edited by LONG TIME BUYER on
decal Posts: 3,205I 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?If you can't hear a difference, don't waste your money.
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.
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nguyendot Posts: 3,594Not sure what you're asking man. Please choose your words carefully and clarify what you are asking.Main Surround -
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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.
tommyt21 Posts: 685LONG TIME BUYER wrote: »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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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
Anthony Hinton Posts: 107doubling the wall thickness should stiffen the box, no negative effects.
kick Posts: 10The thicker the better is the answer
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
Eocuph Posts: 75With 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.
thats crazy .35 cu is to small for any positive gains of a dual wall !
Dual wall is just for rigidity my rule is a brace every 6 inches , if you dont the cabinet will make noise .