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Box Designs
Before You Read the Designs Please read this!
Sub woofers are designed in three different ways. Enclosure ones are designed to run with either a sealed front or back end, Free air ones are designed to run with a supply of air front and back, and others are not specifically designed to run either free air or enclosed but tend to work better either way.
It is important that you know which category your sub woofer lies in before you decide on which sub woofer box you are going to make. If you are unsure of your sub woofers category, either contact your local dealer, the sub woofers manufacturer or leave a message in my Guest book with the make and model of your sub woofer and I will get back to you at the latest, the sunday after you leave the message.
Thank you for your patience in reading this, you may now read on.
Here are a few designs that I thought about when doing the Project work for my GCSE resistant materials, Subwoofer enclosure Project.
This is the design that I used for my project. It
is a 7th order bandpass design which is suitable for any
Enclosure subwoofer. The port in the front of the enclosure lets
the sound, produced by the sub woofer out of the box. The back
end is totally sealed as a box for an enclosure subwoofer should
be.
This box uses a similar concept to the one above.
This design is called a 6th order bandpass. This one is suitable
for a free air sub-woofer. As there are no enclosed parts of this
sub woofer box, it is refered to as a cabinet as aposed to an
enclosure. There should always be a vent to the front and the
back of a free air sub woofer, as any air pressure can burn up
the voice coil.
This is a cabinet for a free air sub woofer which
has the cone of the sub woofer totally exposed to light and air.
These are used quite frequently as manufacturers own and
recommended cabinets for their free air range of sub woofers. As
you can see there is a port placed in the back of the box to
provide air for the rear of the sub woofer.
This sub woofer enclosure uses the same concept as
the one above except for this one is for use with an enclosure
sub woofer. As with the box above, this one is also often used
for the sub woofer manufacturers own enclosure for their range of
enclosure use sub woofers.
This style of enclosure is almost identical to the
one above with the only difference being the slanted back. The
slanted back is put there so that it can sit, snuggly against the
back of a car seat. This design is probably one of the most
popularly made and used designs.
This one is almost identicle to the cabinet three
spaces up. It has a slanted back for exactly the same reasons
that the one above has and is also almost identical to it. The
only difference is that this one has a port and is for use with a
free air sub woofer rather than an enclosure sub woofer.
This box is for a sealed sub woofer. Some sub
woofers tend to work better with sealed fronts rather than backs.
Again this one has a port in the rear of the enclosure to let the
sound come out.