IV.
Installation- Sealed Enclosures
1.
Sealed enclosures provide excellent performance with
U
X
Subwoofers
. They are the simplest enclosures to design and build.
We recommend you choose a sealed design if you have not built
subwoofer enclosures before. Remember to glue and screw all joints,
using enough glue to make sure all joints are air tight. Loosely fill the
enclosure with fiberglass, poly-fill, or cotton damping material.
Recommended Sealed Enclosures
U
X
12
Recommended
Internal Volume
Driver
Displacement
Total Internal
Volume
Optimum 1.25ft
3
/35.38L 0.14ft
3
/4.08L 1.39ft
3
/39.46L
Minimum 1.00ft
3
/28.32L 0.14ft
3
/4.08L 1.14ft
3
/32.40L
U
X
10
Optimum 1.00ft
3
/28.32L 0.08ft
3
/2.27L 1.08ft
3
/30.59L
Minimum 0.75ft
3
/21.24L 0.08ft
3
/2.27L 0.83ft
3
/23.51L
Width
Depth
Ultmate
He
ig
h
t
Internal Volume(ft
3
)= (in Inches)Internal Width X Depth X Height
1728
Internal Volume(L)= (in Centimeters)Internal Width X Depth X Height
1000
V.
Installation- Ported Enclosures
1.
Ported enclosures use a tuned vent to get additional output at the
tuning frequency. Smaller ports than recommended may cause noise
from air turbulence. Flared ports will produce less turbulence and
noise. Remember to glue and screw all joints, using enough glue to
make sure all joints are air tight.
2.
Make sure there is at least 2” between the end of the port and the
adjacent wall of the enclosure.
Ultimate
®
Sound
4
