CONGRATULATIONS! The new c-Series KICKER XPL™ subwoofers feature the
latest advancements in loudspeaker design from Stillwater Designs, the most
famous name in car audio subwoofers.
XPL™ C-SERIES
HIGH OUTPUT SUBWOOFERS
FEATURES OF KICKER C-SERIES XPL
Cast Aluminum Basket - Precision alignment and motor structure support
Hemispherical Polymineral Cone w/ - High rigidity under pressure for accurate linear control
ISD™ (Inverted Structural Dome) - Stops enclosure pressure loss to reduce “pump-down”
- High internal dampening
- Excellent sunlight, pollution and moisture resistance
Double Stitched Surround - Prevents cone/surround separation at high excursions
Blackened Pole Piece - Improved heat transfer
Uniplate™ - Improved thermal and magnetic transfer between pole
and backplate
Extended Pole Piece - Cooler operation increases power handling
- Improved magnetic field linearity around the voice coil gap
Vented Pole Piece - Pressure relief under the center dome improves low bass
Extended Backplates - Prevent damaging voice coil “bottoming”
Perimeter Venting - Measurably lower operating temperature and freer
cone motion
Hi-Temp Kapton Voice Coil Formers - Protects against warped, rubbing voice coils
Long Throw Voice Coil - Enormous cone excursion capabilities
High Power Lead Wires - Stops lead breakage
- Reduces power robbing resistance losses
RECOMMENDED ENCLOSURES
The c-Series XPL subwoofers are designed to be installed in small sealed enclosures.
Stillwater Designs has been using sealed enclosures in its show vehicles for a number of
years. They have proven to be very reliable, with highly predictable performance, even
under extreme power demands. The sealed enclosure sound is very tight and controlled,
yet very “full” and solid, with extended low bass response.
The table on the following page shows suitable enclosure volumes for XPL drivers. Note:
a larger box improves low bass performance; a smaller box produces more mid-bass
“bump”. Consider the type of “sound” you want, and the amount of space in your vehicle,
then you can choose the appropriate enclosure to produce it.
BUILDING YOUR ENCLOSURE
Your enclosure should be made of 3/4" wood, minimum. Avoid low density material such
as common particle board and low grades of plywood. The recommended materials are
MDF (medium density fiberboard), high density particle board or high quality void free 7 to
13 ply plywood such as marine plywood.
When assembling the box use a good grade of wood glue (such as Elmer’s Professional
or Titebond) on all joints. Do not use silicone, hot glue or caulk in place of glue. When the
glue has set, seal all the inside joints with a liberal application of silicone sealer. This is
important to ensure an airtight seal.
The use of terminal cups is the preferred means for getting wires to the woofer. If cups
are not available drill a hole slightly larger than the wire used and carefully seal around the
wire with silicone sealer. This is also very important to maintain a perfect seal in the box.
All the recommended enclosure specs require a 50% fill of polyester fiber. Commonly called
fiberfill, it is normally used as pillow stuffing.
If the woofer mounting hole is not cut exactly to specifications there is a good chance
that air can leak out through the screw holes. To remedy this problem you can use a nonhardening sealer such as rope caulk or plumber’s putty.
DO NOT USE SILICONE PRODUCTS TO SEAL THE WOOFER TO THE ENCLOSURE AS THIS WILL
VOID YOUR WARRANTY.
Be sure to observe polarity when wiring up any speakers. Incorrect polarity will cause a
loss of sound quality and in the case of woofers it can decrease output dramatically.
RECOMMENDED ENCLOSURE VOLUMES
XPL™ C-Series Drivers
Model Box Volume (cubic feet/liters)
X15c 1.8/50.9 Minimum
2.7/76.4 Maximum
X12c 1.0/28.3 Minimum
1.5/42.5 Maximum
X10c 0.8/22.6 Minimum
1.2/34.0 Maximum
POWER HANDLING
The power handling of any woofer is dependent on the type of enclosure used.
Although the thermal power handling figures are listed, there will be other limiting factors
such as over-excursion. It is possible to build an enclosure small enough to control excursion to the point where the speaker will handle as much power as the thermal rating, however low bass and sound quality will suffer. Therefore the excursion limited power rating
should be considered the most power that the woofer should ever receive.
It is also possible to damage a speaker by using too little power if the amplifier is run
into clipping. A clipped signal contains a lot of direct current which the speaker is not capable of dissipating. This will cause burned voice coils. It is difficult to tell when a woofer is
getting a clipped signal because the larger speakers don’t reproduce distortion very well.
Any time the sound quality changes as you turn the volume past a certain point, you can
be assured that the amplifier has reached its limitations and should be turned down.
SPECIFICATIONS
Maximum Amp Frequency Mounting Mounting
Size Impedance Power Sensitivity Response Depth Hole Diameter
MODEL (inches) (ohms) (watts)* (dB 1w/1m) (Hz) (inches) (in., mm)
X15c 15 2,4 & 8 600 90.0 23-500 7, 178 14-1/16, 357
X12c 12 2,4 & 8 500 88.5 25-500 5-1/2, 140 11-1/8, 283
X10c 10 2,4 & 8 350 88.5 25-500 5, 127 9-3/8, 234
*Assumes typical musical program; varies with enclosure size, see your dealer for complete details.
Based on measurements of 4 ohm models.
If you have more questions about the installation of your new KICKER component,
see the Authorized KICKER Dealer where you purchased your component. You may
also call our Technical Services Line at 405 624-8583 for technical assistance.
HOW LONG WILL IT TAKE?
Stillwater Designs maintains a goal of 24-hour service for all returns. Delays may be incurred if
lack of replacement inventory or parts is encountered.
INTERNATIONAL WARRANTY
Contact your International Stillwater Designs dealer or distributor concerning specific
procedures for your country’s warranty policies.
P.O. Box 459 • Stillwater, Oklahoma 74076 • U.S.A. • 405 624-8510
• Install slips (screwdriver holes)
• Damage caused by exposure to water
and/or excessive heat.
• Damage through negligence, misuse, or
accident.
• Items physically damaged due to abuse.
• Freight damage.
• The cost of shipping product to Stillwater
Designs Service.
• Items previously repaired by any
unauthorized repair facility.
• Items returned from unauthorized
individuals or dealers.
• Return shipping on non-defective items.
• Speakers damaged due to amplifier
clipping or distortion.
• Speakers with silicon caulk used for gasket
material.
KICKER drivers are capable of producing sound levels that can permanently
damage your hearing! Turning up a system to a level that has audible distortion is
more damaging to your ears than listening to an undistorted system at the same
volume level. The threshold of pain is always an indicator that the sound level is
too loud and may permanently damage your hearing.
Please use common sense when controlling volume!
WARNING:
MARCH 2000
SPEAKER SYSTEMS LIMITED WARRANTY
Stillwater Designs warrants this product to be free from defects in material and workmanship under
normal use for a period of one (1) year from date of original purchase, unless this product is labeled “B
Stock”, in which case it is warranted for ninety (90) days from date of purchase. Should service be necessary under this warranty for any reason due to manufacturing defect or malfunction during the warranty
period, Stillwater Designs will replace or repair (at its discretion) the defective merchandise with equivalent merchandise at no charge. Warranty replacements on “B-Stock” may have cosmetic scratches and
blemishes. Discontinued products may be replaced with equivalent products.
This warranty is valid only for the original purchaser and is not extended to owners of the product sub-
sequent to the original purchaser. Any applicable implied warranties are limited in duration to a period
of the express warranty as provided herein beginning with the date of the original purchase at retail,
and no warranties, whether express or implied, shall apply to this product thereafter. Some states do not
allow limitations on implied warranties, therefore these exclusions may not apply to you.
This warranty gives you specific legal rights; however you may have other rights that vary from state to
state.
WHAT TO DO IF YOU NEED WARRANTY OR SERVICE
Defective merchandise must be returned to your local Authorized Stillwater Designs (Kicker/Impulse)
Dealer for warranty. Assistance in locating an Authorized Dealer can be obtained by writing or calling
Stillwater Designs direct. You can confirm that a dealer is authorized by asking to see a current authorized dealer window decal.
If it becomes necessary for you to return defective merchandise, call the Kicker Customer Service
Department at (405)624-8510 for a Return Authorization (RA) number. Package all defective items in the
original container or in a package that will prevent shipping damage, and return to
Stillwater Designs, 5021 North Perkins Road, Stillwater, OK 74075
The RA number must be clearly marked on the outside of the package. Return only defective components. Return of entire cabinets, system packs, pairs, etc. increases your return freight charges. Nondefective items received will be returned freight collect.
Include a dated proof-of-purchase from an Authorized Dealer. Warranty expiration on items returned
without proof-of-purchase will be determined from the manufacturing date code. Coverage may be
invalidated if this date is greater than one (1) year previous to the date item is sent in. Freight must be
prepaid; items received freight collect will be refused.
Failure to follow these steps may void your warranty. Any questions can be directed to the Kicker
Customer Service Department at (405)624-8510.
WHAT IS NOT COVERED?
This warranty is valid only if the product is used for the purpose for which it was designed.
It does not cover:
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