Building An Enclosure - Orion XTR102D Manual

BUILDING AN ENCLOSURE

If you're planning to build your own enclosure and are confused
in what type of enclosure best suits your needs this page will
help you choose what enclosure best f its your needs. There are
many different types of enclosures. The two most common used
enclosures are sealed and vented enclosure. This page will show
the advantages and disadvantages of the two enclosures.
ADVANTAGES OF A SEALED ENCLOSURES
•High power handing capability
•Great transient response
•Tolerant of minor enclosure size variation
•Easy to construct
•Smooth roll off (12dB/octave)
DISADVANTAGES OF A SEALED ENCLOSURES
•Requires a woofer with a long excursion for better low bass
f requency response.
•Can have lower sensitivity than ported enclosures.
•When using high power and small enclosures, the woofer is not in an ideal
cooling environment.
•Lower bass as compared to a properly tuned vented enclosure
above the ported tuning f requency.
ADVANTAGES OF A VENTED ENCLOSURE
•Increased output around vented tuning
•Higher power handling above the port tuning f requency
•Extended f requency response
•Magnet is in a good cooling environment
•Handles higher bass f requencies with less distortion
DISADVANTAGES OF A VENTED ENCLOSURE
•Vented enclosure transient response is not as good as sealed
boxes because of the resonant effect of the vent tuning
•Midrange sound coming f rom inside the enclosure through the vent
can produce unpleasant sound coloration.
•Loss of cone movement control below vent tuning, which can re
sult in high distortion and mechanical failure of the driver.
•Lower power handling below the port tuning f requency
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