5/8 MDF for XXX

[adammk5 10+ year member]

I went to home depot and they said they don't carry 3/4 mdf anymore so I bought the 5/8. my box has a small depth about 8 inside and 9 1/4 outside the box and 33 by 30 for the front and back,it's about 3.8-4 cu ft but I havent calculated it yet.

but thats not my question my question is that will my box flex if I have my sub pushing alot of spl(1500 watts)I also made 4 braces inside the box so it wouldn't flex,it's strong enough for me to stand on top of it

I haven't tested it out because I didn't make the speaker cut out.

if anybody reccomends me to rebuild an enclosure please tell me where to buy 1" or 3/4 mdf at. Thanks

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[nswartley 5,000+ posts]

i wouldnt suggest using that with a XXX...return it if possible. you will get flex especially if you are using it for SPL purposes.

to get 1" or 3/4" look in the yellow pages under "lumber" and there will be plenty of places that carry it near you...i hate how my home depot only carries 5/8" also...grrrrrr.

-nate

 

[Heresy 10+ year member]

Glue 2 sheets of 1/2 inch MDF together and get a one ince sheet. Problem solved. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[nswartley 5,000+ posts]

Glue 2 sheets of 1/2 inch MDF together and get a half inch.

that's some pretty fuzzy math right there...1/2"+1/2"=1/2"?

yo no comprendo.

-nate //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[Gauntlet 5,000+ posts]

Well shit, you've already got the box made, I say go with until it breaks...

 

[Heresy 10+ year member]

that's some pretty fuzzy math right there...1/2"+1/2"=1/2"?
yo no comprendo.

-nate //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

Penchy typo... //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[adammk5 10+ year member]

let's say I wire my sub to 4 ohms and my amp will push 500w rms,will the enclosure bust even at half volume,I'm not going to be entering any spl comps I mainly bought it because it's a loud sub and sounds very warm at the same time.by the way my enclosure is pretty sturdy

 

[Gauntlet 5,000+ posts]

Well, it shouldn't just break or snap in half, but it can flex and sound like shit....I say use it and see what happens. Worst case, you have to build a new one...

 

[musicc 10+ year member]

sucks... cause I need 5/8" boards but my homedepot only sells 3/4"

 

[nswartley 5,000+ posts]

sucks... cause I need 5/8" boards but my homedepot only sells 3/4"

and what do you need 5/8" for?

-nate

 

[ss3079 5,000+ posts]

Well, it shouldn't just break or snap in half, but it can flex and sound like shit....I say use it and see what happens. Worst case, you have to build a new one...

Yeah, that's what I'd do. If it sounds like crap and flex's ... then either build yourself a new one or add another layer of 5/8" material //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

- Steve

 

[EarDrummin. 10+ year member]

Home Depot usually only sells 2' x 4' sheets of mdf. I haven't been able to find anything longer, for a bigger box. Silly *****es.

 

[AMD 10+ year member]

try lowes, that is where i buy all my mdf. Here they have 3/4 in 4'x8' sheet for 17 dollars.

 

[Biohazard 10+ year member]

My Home Depot only sells 4' x 8' sheets ...

mine sells 4x4 sheet but they cost like $20 where as a 4x8 is like 25......so its not worth it to get a 4x4

 

[chrisw21_2000 10+ year member]

Alot of people use 5/8 to build boxes, if it is braced right it will be fine. I ran a box that was 5/8 on alot of subs. If you want to be safe, fiberglass resin the joints and you cant break it then.

Laterz