Kicker L7T Série Manuel D'utilisation page 4

BOX BUILDING NOTES
Use 3/4" (1.9cm) or thicker MDF (medium density fi berboard) and seal the joints with silicone. Use the
"template" inside your L7T's shipping carton to mark the mounting hole, then cut directly on the line.
These designs need internal bracing. Add triangular bracing between each of the larger unsupported
panels. See Figure 2.
All the cubic feet (L) measurements in this manual include the displacement of the woofer. For the vented
enclosures the displacement of the port must be calculated and added to the internal volume of the fi nal
design. Use the outer dimensions of the port and multiply "X x Y x Z", convert to cubic feet, for example
the L7T12 vented Minimum design's external port dimensions are, using 3/4" (1.9cm) MDF: [ (12.5" +
1.5" total MDF wall thickness) x (2.5" + 1.5" total MDF wall thickness) x 20"] x (1 ft
and add this number to the internal volume of the enclosure, L7T12's 1.75 ft
Figure 3. Due to the necessary length of these ports, you may want to fold the port along the bottom and
back walls. It will be impractical to use round ports for these designs.
Do not install a port opening against a solid surface, such as an internal brace, back-panel or trunk wall,
seat or interior panel of your vehicle. The port opening must remain unobstructed. Use the smallest
dimension of the rectangular port as the minimum amount of space between the port opening and any
solid surface to insure unrestricted airfl ow.
If you prefer a smooth bass response, you should loosely fi ll your L7T enclosure with poly-fi l stuffi ng.
Ported designs will require covering the end of the port (located inside the box) with grill cloth, chicken
wire, or expanded metal to prevent the poly-fi l from exiting the port. The use of poly-fi l will slightly
decrease effi ciency, but will deepen and extend the low frequency output.
For more advice on box building, refer to your Authorized Kicker Dealer, or click on the Support tab on
the Kicker homepage, www.kicker.com. Please e-mail support@kicker.com or call Technical Support at
(405) 624-8583 for specifi c or unanswered questions.
Figure 2
D
D = 3" x 3" for L7T12
D = 2" x 2" for L7T8, L7T10
Sound Check: Poor bass response? Check the system phasing by reversing the positive and negative
speaker connections on the subwoofer. If the bass improves, then the subwoofer was out of phase in
reference to the rest of the audio system.
4
2019 L7T Rev D.indd 4 2019 L7T Rev D.indd 4
D
D
3
/ 1728 in
3 + .77 ft 3 = 2.52 ft
Figure 3
Y
X
3 3
) = .77 ft ,
3 . See
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