Diagram enclosure -1 dimension 4320 ÷ 15 ÷20 = 14.4
So our depth is 14.4” for this enclosure
Note: this formula is for the INTERNAL dimensions, please add the thickness of the material
used to construct the enclosure to the formula to give you the outside dimensions.
So assuming we are using 1 inch material we need to add 2 thicknesses to each internal dimension
to allow for material top and bottom so the external dimensions for this enclosure would be 17 x 22
x 16.4 inches
The displacement of the woofer and the displacement of the port must also be added to the required
volume before you calculate the required sizes needed to build your enclosure.
MINIMUM ENCLOSURE SIZE
When constructing a ported enclosure, additional care needs to be taken with the port itself. If using
a round port a gap in inches at least equal to the diameter of the port must be left both in front of
and behind the port to provide unobstructed air
À
r ow, for example, if we are using a 3” port we need
À
to leave 3” gap between the rear of the enclosure, the vehicle and the port.
If using a slot port you must leave a gap at
least equal to the shortest measurement of
the port between the rear of the enclosure,
the vehicle and the port VIBE recommends
the use of a slot port for the BLACKDEATH
subwoofer as it is dif
¿
ff cult to
¿
¿
nd a circular
¿
port with the required cross sectional area
and using a slot port made from the same
material as the enclosure allows the port to
be tied into the construction of the enclosure
and add further stability acting as another
brace.
The ideal place for the port is on the same
baf
À
ff e as the woofer,
À
4.5cuft enc 0.67cuft port
Enclosure – 17” x 36” x 15”
Port – 8” x 9” x 16” long
BlackDeath 15 SPL ‘Bubonic’ Subwoofer
5
Summary of Contents for BlackDeath 15 SPL
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