Kicker COMP8 Manuel D'utilisation page 3

VENTED ENCLOSURE APPLICATIONS
These boxes are the enclosure of choice for outrageous street bass and high performance SPL contests.
If space is not a problem and you want to get the most from your Comp, try one of these ported designs.
You will not be disappointed. Comp 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.
Vented Compact Comp8
Box Volume, ft 3 (L) .66 (18.7)
Port Opening, in x in (cm x cm) 1.5 x 8 (3.8 x 20.3) 1.5 x 10.5 (3.8 x 26.7) 2 x 12.5 (5.1 x 31.8)
Port Length, in (cm) 18 (45.7)
Power Handling, RMS 55
Vented SQ Comp8
Box Volume, ft 3 (L) 1.2 (34)
Port Opening, in x in (cm x cm) 1.5 x 8 (3.8 x 20.3) 1.5 x 10.5 (3.8 x 26.7) 2 x 12.5 (5.1 x 31.8)
Port Length, in (cm) 12.25 (31)
Power Handling, RMS 55
The ported Compact design increases bass effi ciency and fi ts in many space-limited applications.
Although it is the smallest recommended ported enclosure, the output from 30 to 80 Hz will be
considerably higher than that of any sealed box.
The SPL / Deep Bass ported design has even more output in this crucial frequency band. The SPL /
Deep Bass is the largest and most effi cient enclosure design.
INFINITE BAFFLE MOUNTING
The infi nite baffl e mounting method effectively utilizes the rear deck and trunk space of most sedan type
vehicles. The Comp subwoofer does not require a sealed enclosure for thumpin' performance. Carefully
install the subwoofer in the baffl e. Mark the rear deck or parcel shelf for the hole cut-out diameter of the
subwoofer and cut the hole. The rear deck may need to be reinforced to help hold the weight of the
subwoofer and to keep it from fl exing during playback. Mount 3/4" (1.9 cm) thick MDF (Medium Density
Fiberboard) to the bottom of the deck. Mark the MDF and cut the holes. If MDF is not available in your
area, use high grade plywood. It is important to isolate the sound coming off the front of the subwoofer
from the sound radiating from the back of the subwoofer. This isolation is usually accomplished by using
the driver in a factory speaker location, or in a location with a semi-isolated rear chamber.
Note: If mounting in trunk space or other compartments of the vehicle, pay attention to cable lines, trunk springs, hinges
and seat mechanisms that could cause problems with the operation of the vehicle or stereo system. Carefully lay the
stereo system cables; pay attention to seat fasteners and other items that could harm the cables.
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 Comp'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 3.
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
4
COMP SUBWOOFER
2010 Comp e01.indd 4-5 2010 Comp e01.indd 4-5
Comp10 Comp12 Comp15
1.25 (35.4) 1.75 (49.6) 3 (85)
2.5 x 15.5 (7 x 39.4)
14.5 (36.8) 16 (40.6) 17 (43.2)
125 150 250
Comp10 Comp12 Comp15
1.75 (49.6) 2.25 (63.7) 4 (113.3)
3 x 15.5 (7.6 x 39.4)
13.25 (33.7) 16.375 (41.6) 16.25 (41.3)
125 150 250
fi nal design. Use the outer dimensions of the port and
multiply "X x Y x Z", convert to cubic feet, for example
the Comp12 vented compact 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 ft3 / 1728 in3 ) = .65 ft3, and
add this number to the internal volume of the enclosure,
Comp12's 1.75 ft3 + .65 ft3 = 2.4 ft3. See Figure 4.
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 an ultra-smooth bass
response, you should loosely fi ll your
Comp 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
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.
Comp Subwoofer - Covered by one or
more of the following patents:
U.S. Pat #'s 6,611,604, 6,731,773
D473,216, D456,386, D449,293,
D355,193, Taiwan Pat. #162,154;
Other U.S. and foreign patents pending.
P.O. Box 459 • Stillwater, Oklahoma 74076 • USA • (405) 624–8510
Figure 3
D
D
D
D = 3" x 3" for C15, C12
D = 2" x 2" for C10, C8
Figure 4
X
stillwaterdesigns
2/19/2010 3:25:54 PM 2/19/2010 3:25:54 PM
5