> There is a website of somebodys home theater where dual horns are under
> the floor from cement formed walls.
>
> Marble and granite do ring up out of the range of the woofer. It can
> become a
> problem and needs to be damped in the upper registers.
>
> If you lamanate, you can use all kinds of combinations of materials.
> Plexaglass/aluminum is popular.
>
>
> greg
>
>
True. Though I have never used plexiglass it makes excellent enclosures
(as
long as the surfaces are curved for rigidity) as they are light (much
lighter than MDF) and VERY rigid (hence no flexing or resonating).
A common misconception is that different materials affect the sound
quality
of the bass. This is not true. The point I was really tring to make was
that if the sound quality IS different between materials (given the same
internal airspace, and same size ****t if bass-reflex type), then there is
a
PROBLEM with the subwoofer enclosure. In other words, MDF (or any type of
wood) enclosures don't "sound" any different than fiberglass enclosures,
stone enclosures, metal enclosures, ect. as long as they meet the two
basic
requirements I mentioned before A) must be airtight and B) must not
resonate
or flex.
MOSFET
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