I read around and a site said MDF wood isn't completly airtight and that you should run atleast 1 layer of fiberglass resin to plug up all the tiny holes in the wood. So what do you say guys, fact or fiction?

 

It's probably true in theory but the cone of your speaker probably leaks more air then MDF ever would.

 

id be mroe worried about seams and terminals before i was worried about the mdf leaking air.

 

The amount it would leak isn't going to make rat's chance in hell of a difference. Although I have seen people spray that rubber shit or even dynomat the interior of their boxes as an extra precaution. Not really worth it in my opinion.

 

i sprayed rubber shit in mine but i didnt use mdf... 10ply plywood lol... its free what can i say

 

tsk tsk tsk

no wonder ur shit sounded like ass

 

Wow.

 

Fact. Maybe i take my boxes to seoriusly. Fiberglass resin over the entire interior of the box with two layers of fiberglass mat on all the seams. No more air leaks.

 

very nice, I did that once on a box and decided it was over kill and never did it again lol (resin on all the seams with mat)

 

Major overkill. If you make a box right, you shouldn't have to worry about it.