4
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 an ultra-smooth bass response, you should loosely fi ll your L7R 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.
Y
X
Z
VENTED ENCLOSURE APPLICATIONS
L7R subwoofers will handle massive amounts of power in any of the recommended enclosures,
minimum or maximum. The smaller enclosures are best for use in limited-space applications. The larger
recommended enclosures will yield slightly more bass at the lowest frequencies.
D
DD
Figure 3 Figure 4
D = 3” x 3” for L7R12, L7R15
D = 2” x 2” for L7R10
Vented Minimum L7R10 L7R12 L7R15
Box Volume, ft³ (L) + port displacement 1.25 (35.4) 1.75 (49.6) 3.0 (85)
Port Opening Size, in x in (cm x cm) 2.5x11.25 (6.4x29) 2.5x13.25 (6.4x34) 2.5x16.25 (6.4x41)
Port Length, in (cm) 19.75 (50) 22.5 (57) 19.5 (50)
Power Handling, RMS 500 600 900
Vented Maximum L7R10 L7R12 L7R15
Box Volume, ft³ (L) + port displacement 2.25 (63.7) 3.25 (92) 6.0 (170)
Port Opening Size, in x in (cm x cm) 3x11.25 (7.6x29) 3x13.25 (7.6x34) 3.5x16.25 (8.9x41)
Port Length, in (cm) 18 (46) 14.5 (37) 13.75 (35)
Power Handling, RMS 500 600 900
2018 L7R Rev F.indd 4 5/25/2018 1:03:27 PM
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