MDF vs Plywood...

darita
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Just read this, "The Loud Speaker Cookbook actually states marine grade plywood or sheet pvc is a superior material to mdf for sub enclosure construction. Both the plywood and sheet pvc would flex with the sub but remain air tight."

True or not?

 
Just read this, "The Loud Speaker Cookbook actually states marine grade plywood or sheet pvc is a superior material to mdf for sub enclosure construction. Both the plywood and sheet pvc would flex with the sub but remain air tight."True or not?

Also consider most applications that that book considers are low power low x-max.

I prefer plywood as it's lighter and much easeir on tools.

MDF flexes plenty and really most conventional boxbuilding materials will. There is no substitute for bracing!

 
As a serious spl competitor I us birch. But I use it for less weight. Most other competitors use mdf since they have metal cages. I have a double 2x4 for my cage. my spl vehicle is a 4 banger and I drive it to shows. so birch it is

 
Just read this, "The Loud Speaker Cookbook actually states marine grade plywood or sheet pvc is a superior material to mdf for sub enclosure construction. Both the plywood and sheet pvc would flex with the sub but remain air tight."True or not?
Notice that it says MARINE GRADE, meaning not the cheap-o **** from home depot.

Marine grade is more expensive than MDF, and depending on the construction possibly lighter.

Marine grade baltic birch comes to mind. That stuff is like $100 for a 4x4 sheet.

Also, sometimes enclosure flex IS good for spl oriented installs. But, once again, the only way to know for certain is to build and test.

I've built birch and MDF boxes and never correlated a difference in SPL. Though I've never built exactly identical boxes in both to really test the difference, if any.

 
Baltic Birch plywood for the box; MDF for the bracing. MDF makes excellent bracing material because it is already compressed so there will be no movement in the cabinet at all.

 
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darita

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