Enclosure type


Bronze Member
Username: Doug_w

Post Number: 30
Registered: Mar-05
Is there going to be any difference in sq or spl if I use a 5/8" MDF box vs. a 3/4" MDF box? Or is a 5/8" MDF box just as good as a 3/4" MDF box?

Bronze Member
Username: Bigdanman


Post Number: 22
Registered: Mar-05
Well 3/4" mdf is 1/8" thicker than 5/8" mdf (DUHH). i dont think there will be that much of a difference, but 5/8" is the cheapy stuff, and will cause the box to flex easier (because its thiner). Therefor losing some some edge on the 3/4". Conclusion: 3/4"

Bronze Member
Username: Mixneffect

Orangevale, Ca. USA

Post Number: 13
Registered: Apr-05

There will be an audible difference. The 5/8" MDF will resonate at a different frequency than the 3/4" MDF. The 5/8" MDF will sound boomy or boxy. The 3/4" MDF will have better controll.

Test it for yourself;

Go knock on a solid wood desk and listen to the sound. It will be a high pitched sound. Now knock on your hollow 3/16" thick door-skin and listen to the sound. This one would sound low pitched with an echo.


Because it vibrates...

When building a speaker enclosure, you want to hear the speaker's resonance, not the box.

Prefferebly use 1" MDF. Believe me !!! You will never go back to lower thicknesses.
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