Another Box question

[Snake_Man]

Im just wondering what makes one sealed box better than another like what makes Qlogic or homebuilt boxes better than say the walmart box? Other than being small in size I dont see a real probelm with the walmart box its solid doesnt leak air and fits nicely in my cab. Are other higher quality boxes built out of better material or what

[PaulD]

the "walmart box" uses wood that is not as rigid as MDF or fiberglass but the biggest reason is that home made (or a few select premades) are designed with a total air volume to match the specific sub speaker. This is critical for good bass - especially if you are talking about ported or bandpass.

[Snake_Man]

so the type of wood used has a large effect on how it sounds?

[Haibane]

yeah pretty much

[PaulD]

yea, mdf (medium density fiberboard) is an amorphous material that does not vibrate easily, and if it's thick enough, doesn't flex too much either.