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Message: <blockquote data-quote="scottrc5391" data-source="post: 378368" data-attributes="member: 551678"><p>Supposedly MDF, as already stated, is stiffer (resists flexing so theoretically it should yeild slightly better/louder sound, is smoother (for better fit and finish), and is denser and therefore a lot more airtight than standard plywood. IMO, 3/4" plywood is just about as good if done right, and it seems to me like it would be the stronger of the two. Just make sure you don't use bowed boards and cut it really well. The use of a spray-on sealant to the insider renders it pretty much airtight like someone already said. BTW, why would you not finish a plywood box or MDF box by carpeting, etc.? Appearance should be no way to compare the two because nobody should leave their box bare. I also figured MDF is heavier, correct? Ahh, what the heck, just use fiberglass if you can do it.</p></blockquote><p></p>

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