Recommended Enclosures
This manual offers you two separate types of enclosures, sealed and ported. These
two types of enclosures will give you different types of performance to better suit
your application.
When building a sealed or ported enclosure, the most important thing to remember
is that the enclosure should be airtight. You can seal all the seams with glue or any
type of sealant. This should prevent any air leaks. The seams should also be nailed
with finishing nails to add extra durability. We recommend you use 3/4 inch MDF
(Medium Density Fiberboard) when building any enclosure.
Remember to account for all sources of volume displacements (i.e. speaker, braces
and/ or ports) when calculating box size.
Calculating Enclosure Volume
Height x Width x Depth (internal dimensions in inches)
1728 = Volume in cubic feet.
Box Recommendations
Sealed Enclosure SPL-1000 SPL-1200 SPL-1500
SPL (cu.ft) .5 .8 2
Musical (cu.ft) .75 1 3.5
Ported Enclosure SPL-1000 SPL-1200 SPL-1500
SPL (cu.ft) .75 1 2
Port (inches) 4 x 25.3 4 x 20.4 Two-4 x 19.6
Musical (cu.ft) 1 1.3 3
Port (inches) 4 x 20 4 x 18 Two-4 x 18
4
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