ENCLOSURES
BRAVOX BVX SUBWOOFERS have been specially designed to produce outstanding results in both small volume
sealed and small volume vented enclosures. While it is possible for the advanced installer to use the Thiele/Small
parameters provided in this manual to design their own enclosures (for more on “doing it yourself”, check out Vance
Dickason’s Loudspeaker Design Cookbook, 6th Edition at www.audioXpress.com), all this work has been done for you
and provided in the recommended enclosure charts. The choice of which type of enclosure, vented or sealed, is
strictly up to you. As a rule, sealed enclosures provide better transient bass response than their vented counterparts,
although the vented enclosures generally provide more deep bass. Your choice should be based on the amount of
space available and the size of the vehicle. In general, smaller vehicles (Corvettes to Camry’s) probably work best
with sealed enclosures while larger vehicles such as SUV’s, Vans, large trucks or RV’s can benefit from the kind of
performance available from vented enclosures. However, both enclosure types will work in any situation.
SEALED ENCLOSURES
This enclosure is made up of a totally closed, airtight box. This type of enclosure gives excellent, tight bass response,
as well as providing an effective control of loudspeaker excursion, maintaining it within reasonable limits and generally
providing lower distortion and very high volume levels. If you build your own enclosure, BRAVOX recommends that
you glue and screw all joints using enough glue to ensure that all joints are airtight.
VENTED ENCLOSURES
Vented enclosures are not airtight and incorporate an additional opening known as a port or vent, which is generally
fabricated from either plastic or cardboard tubing. The port augments the sound coming out of the woofer and
is in most cases capable of going lower in frequency than the same woofer in a sealed box. Even though vented
enclosures are not airtight, you should follow the same procedure as with sealed boxes and glue and screw together
all joints.
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Summary of Contents for BVX12D 2
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