Audiopipe TXX-BD1-15 - Manual (Page 6)

4
Building an enclosure
When building an enclosure, the walls should be as rigid as possible and not flex.
Flexing of the enclosure can drastically decrease your subwoofers performance.
It is recommended that Enclosures be built using 3/4” MDF, be glued and
secured with nails or screws. Add bracing to each of the larger unsupported
panels. Your enclosures construction has a significant bearing on how well your
subwoofers perform. When designing your enclosure keep in mind and account
for wood thickness, port and woofer displacement.
Calculating volume
Measure the available space for the enclosure and using the formula (H X W X L
divided by 1728) determine the appropriate measurements needed in order to
achieve the desired cubic enclosure. If two facing sides are of uneven lengths add
them together and divide by two.
Wiring subwoofers
When designing your system it is important to achieve a good power match
between your subwoofer amplifier and the subwoofers capability. RMS power
should be considered as a regular method of driving the subwoofer, make use of
the power without drastically overdriving the amplifier. Amplifiers cannot read
how many subwoofers are in the connection, they normally read the final
impedance or otherwise known as ohms. It is important to properly match your
amplifiers normal operating impedance with right subwoofer configuration.