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Features
Low Impedance Operation Class A/B stable into 2 ohm stereo
or 4 ohm mono loads.
EndKaps Cast aluminum, custom, removable covers to
protect and hide all your wiring connections to the amplifier.
Can be prepped and painted any custom color you choose.
SORT Protection Circuitry (Short circuit, Over-voltage, Reverse
polarity, Thermal) Protects amplifier from accidents and
undesirable operation.
Two Year Warranty When purchased from an Authorized
KICKER dealer.
MOSFET Power Supply Provides high efficiency operation.
KickBass Variable bass boost circuit which provides up to 12dB
of boost at 40Hz.
Built-In Crossover 12dB selectable High pass or Low pass fixed
at 80Hz. User defeatable for full range operation.
High & Low level inputs Allows connection to various sources
such as: after-market stereo, factory radio, DVD Player, Video
Cassette Player, etc.
Custom tooled gold plated connectors Assure maximum
power transfer and clamping.
SAMS (Stereo And Mono Simultaneously) Amplifier will
operate into a bridged mono load and a stereo load at the same
time.
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KX Amplifier
3
With the shroud removed, drill 4 holes using a 7/64” drill bit
and use the supplied #8 screws to mount the amplifier.
Mounting
When selecting a location to mount your Kicker amplifier be
sure it is structurally sound and that there are no items behind
the area that could be damaged by the screws. Check for brake
lines, fuel lines, gas tanks, or wiring harnesses, etc.
All amplifiers generate heat under normal operation. Be sure to
choose a location that allows adequate ventilation for the
amplifier. Also consider that the air temperature inside an
automobiles trunk can reach upwards of 140 degrees
fahrenheit. An amplifier mounted here may require additional
cooling tactics such as fans or venting to allow cool operation. If
possible, mounting the amp in the passenger compartment will
allow cooler operation.
Now that you are ready to mount your amplifier, use the
supplied 3mm allen wrench to remove the amplifier EndKaps.
This will give you access to the mounting holes in the
amplifier and all wiring connections.
Wiring
Signal can be input into the amplifier using either the low level
RCA input connections or the high level (speaker level)
connections. Using the low level RCA connections is the
preferred method. Use the high level inputs only if your head unit
does not have low level RCA type outputs.
Remove
Remove
WARNING-Use Only One...
Never Both At The Same Time!!!
RCA
Outputs
Speaker
Outputs
SOURCE UNIT
High-Level
Inputs
LEFT
LEFT
RIGHT
RIGHT
+
RIGHT
RIGHT
LEFT
LEFT
+
-
-
-
-
Remove
+
Remove
+
AMP 2
AMP 1
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KX Amplifier
4
The use of twisted pair interconnects is recommended for all
installations to minimize noise. When routing these cables
through the automobile, try to keep them away from factory
wiring harnesses and other power wiring. If you need to cross
any of this wiring do so at a 90 degree angle to reduce the
potential of noise problems.
Model
Fuse Size
30A
Wire Size
8 GA
KX-200.4
RCA Dummy Plugs
When working with power connections it is always
recommended that you disconnect the battery to prevent
accidents.
When using both sets of High Level inputs, RCA dummy plugs
must be inserted into the AMP 2 inputs in order for the fader to
work properly. If the amplifier is being used in any other
configuration do not use the RCA dummy plugs! If you do not
have dummy plugs available, simply using raw RCA ends or
cutting the ends off of existing cables will be sufficient. See the
Amplifier Technical manual for more information. DO NOT USE
SHORTING PLUGS!
The ground should be connected to the amplifier first before
making any of the other connections. This wire should be as
short as possible (24 inches or less) and connected to a
paint/corrosion free solid metal area of the car’s chassis. Use the
same gauge wire as recommended for the amplifier’s power
connection to the battery. Adding an additional ground wire
between the car battery’s negative post and the car
chassis of this same gauge (or larger) is also
recommended.
SOURCE UNIT
RCA Dummy Plugs
If you ever need to remove the amp from the vehicle after it
has been installed, the ground wire should be the last wire
disconnected from the amplifier, just the opposite as when you
installed it.
Speaker
Outputs
A fuse must be installed within 18 inches of the battery to
protect the power wire feeding your amplifier. This fuse should be
of at least the same value used in the amplifier but no higher
than the capacity of the wire. See the chart below for wire size
and fusing recommendations.
High-Level
Inputs
RIGHT
+
LEFT
LEFT
+
RIGHT -
LEFT -
LEFT
-
RIGHT
-
RIGHT +
+
AMP 1
AMP 2
Note: To get the best performance from your new Kicker Amplifier,
we recommend using genuine Kicker Accessories and Wiring.
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5
KX Amplifier
System Diagram
The following diagrams show the most common configurations
for your system.
-
+
SIGNAL IN AMP 2
Stereo Four Channel Operation
-
+
KX.4 amplifiers are capable of operating into a minimum
impedence of 2 ohms per channel in stereo operation.
GROUND
SIGNAL IN AMP 1
REMOTE
TURN-ON
18"
or less
+12V
FUSE
BATTERY
-
-
+
+
-
SIGNAL IN AMP 2
Stereo And Bridged
KX.4 amplifiers are capable of operating into a minimum
impedence of 2 ohms stereo and 4 ohms bridged operation.
-
+
+
+
-
GROUND
SIGNAL IN AMP 1
REMOTE
TURN-ON
18"
or less
+12V
FUSE
BATTERY
-
+
-
+
-
SIGNAL IN AMP 2
+
BRIDGED OPERATION (MONO)
KX.4 amplifiers are capable of operating into a minimum
impedence of 4 ohms in Bridged operation.
GROUND
SIGNAL IN AMP 1
REMOTE
TURN-ON
18"
or less
+12V
FUSE
BATTERY
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KX Amplifier
6
BEFORE TURNING ON THE SYSTEM FOR THE FIRST TIME,
MAKE SURE THAT THE FOUR ROTARY CONTROLS ON THE
SIDE OF THE AMPLIFIER ARE TURNED FULLY
COUNTER-CLOCKWISE!
Navigation
Your Kicker amplifier has four rotary controls and two
switches on the end panel. These controls ensure the reliability
and performance of the amplifier, so they need to be set
correctly.
GAIN CONTROLS
CROSSOVER SWITCHES
Remember, the gain control is not a volume control, it matches
the output of the head unit to the input level of the amplifier and
must be adjusted properly for best performance. All the way up
or down is not necessarily the best. Turn the head unit up to
about 3/4 volume. (eg. If the head unit goes to 30, turn it to 25.)
Next, turn (clockwise) the gain on the amplifier up slowly until
you can hear audible distortion, then turn it down just a little.
Adjust AMP 1 first, then proceed to AMP 2.
NEVER CHANGE THE CROSSOVER SWITCH SETTING WITH
THE SYSTEM ON!
The switches located on the end panel next to the RCA jacks
are for setting the internal crossover. In the OFF position the
amplifier passes a full range signal to the speakers. Use the LO
positon when connected to a subwoofer. The HI positon should
be selected when connected to any speakers which you do not
want to receive sub-bass information.
CROSSOVER CONTROL
The crossover is fixed at 80Hz high pass or low pass. This
control should be set to match your speaker requirements. For
example, if the amplifier is driving subwoofers, you will need to
set it to lo pass.
BASS BOOST
The BASS BOOST control is designed to give you increased
output at 40 Hz. The setting for this control is subjective,
however, if you turn it up, you must go back and adjust the gain
control to avoid clipping the amplifier.
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KX Amplifier
7
ꢀ LED is RED, no output:
1.) Amp is very hot.
Trouble shooting
If your amplifier does not appear to be working, check obvious
things first such as blown fuses, poor or incorrect wiring
connections, crossover and gain controls set
incorrectly, etc.
ꢁThermal protection is engaged. Check for proper
impedance at speaker terminals. Also check for
adequate airflow around amplifier.
2.) Amp shuts down only while vehicle is running.
ꢁVoltage protection is engaged. Voltage to the amplifier
is not within the 9-16 volt operating range. Have
automobile charging/electrical system inspected.
There is one LED on the end panel of your Kicker KX series
amplifier, it will turn from red to green depending on status. When
the LED is green this indicates the amplifier is turned on and no
trouble exists. If the LED turns red this indicates that the
protection circuitry (SORT) is engaged.
3.) Amp will only play at low volume levels.
ꢁShort circuit protection is engaged. Check for speaker
wires shorted to each other or the vehicle chassis.
Damaged speakers or operating below minimum
impedance will also cause this.
The power indicator on top of the amplifier which illuminates
the model badge follows the same function as the Green LED.
ꢀ LED off, no output:
With a Volt Ohm Meter (VOM) check:
ꢁ+12 volt power terminal (should read +12V to +16V).
ꢁRemote turn-on terminal (should read +12V to +16V).
ꢁGround terminal.
ꢀ No output from one channel:
ꢁCheck balance control on head unit.
ꢁCheck RCA & speaker connections for that channel.
ꢁSwap RCA connections from left to right.
If problem changes sides then you have a bad RCA
cable or source unit problem.
ꢀ LED is GREEN, no output:
ꢁCheck RCA connections.
ꢁSwap speaker connections from left to right.
If problem changes sides then you have a bad speaker
cable or bad speaker.
ꢁTest speaker outputs with known good speaker.
ꢁSubstitute known good source unit.
ꢁCheck for signal on RCA cable with VOM meter in AC
position.
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KX Amplifier
8
Trouble Shooting
Please Note: Modern high performance speakers have a lower
DC Resistance than what used to be available. The Kicker
Coaxial and Component Speakers are rated at four ohms (some
DC Resistances may be as low as 3 ohms) and work with any
amplifier designed to operate at a four ohm load. If you want to
use two Kicker Coaxial or Component Speakers on a single
channel of your amplifier wire the speakers in series. This will
improve the sound quality, lower the total harmonic distortion and
lessen the thermal load at the amplifier. This may prevent an
amplifier from shutting down, due to over-current protection
circuitry.
ꢀ Alternator noise (whining sound that varies with engine
RPM):
ꢁCheck for damaged RCA cable.
ꢁCheck routing of RCA cable.
ꢁCheck source unit for good ground.
ꢁCheck gain setting, turn down if set too high.
ꢀ Poor stereo image or reduced bass response:
ꢁCheck system phasing by turning the balance control
from left to right. If there is more bass output when turned
to either side then check your speaker wiring for proper
positive and negative connections. reverse connections on
one channel if necessary.
If you have more questions about the installation and operation
of your new KICKER amplifier, see the Authorized KICKER
Dealer in your area. You may also call our Technical Services
Line at (405) 624-8583 for assistance or visit our website at
CAUTION: When jump starting the vehicle, be sure that
connections made with jumper cables are correct. Improper
connections can result in blown amplifier fuses as well as
failure in other systems in the vehicle.
NOTE: All specifications and performance figures are subject to change. Please visit the support section at www.kicker.com for the most current information.
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9
KX Amplifier
Performance
Specifications of KX200.4
Height:
2.5 inches / 6.35 centimeters
10.125 inches / 25.7 centimeters
20Hz - 20kHz, +/- 0.5dB
MODEL
KX200.4
Width:
RMS Power in Watts, All Channels Driven
@ 14.4V, 4Ω Stereo, < 1% THD+N
@ 2Ω Stereo, < 1% THD+N
Frequency Response:
Input Sensitivity:
4 x 35
4 x 50
2 x 100
170mV - 5V low level, 340mV -
10V high level
@ 4Ω Mono, < 1% THD+N
Signal-to-Noise Ratio:
Electronic Crossover:
>95dB, a-weighted, re: rated power
High Pass, Low Pass or Bypass,
Fixed @ 80Hz, 12dB/octave
@ 12.5V, 4Ω Stereo, 0.085% THD+N
@ 2Ω Stereo, 0.5% THD+N
@ 4Ω Mono, 0.5% THD+N
Length with EndKaps:
4 x 25
4 x 40
2 x 80
KickBass Boost:
Variable 0 to +12dB boost @ 40Hz
11.84”
(30.07cm)
Model KX200.4
35 x 4 @ 4 ohms, 14.4Vdc, 1% THD,
CEA-2006 (Watts)
Signal to Noise Ratio -85
CEA-2006 (ref: 1W, A-weighted)
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KX Amplifier
10
WHAT IS NOT COVERED?
ELECTRONICS LIMITED WARRANTY
This warranty is valid only if the product is used for the purpose for which it was
designed.
It does not cover:
Kicker warrants this product to be free from defects in material and workmanship
under normal use for a period of THREE (3) MONTHS from date of original
purchase with receipt. When purchased from a Authorized KICKER Dealer it is
warranted for TWO (2) YEARS from date of original purchase with receipt. In all
cases you must have the original receipt! Should service be necessary under this
warranty for any reason due to manufacturing defect or malfunction during the
warranty period, Kicker will repair or replace (at its discretion) the defective
merchandise with equivalent merchandise at no charge. Warranty replacements may
have cosmetic scratches and blemishes. Discontinued products may be replaced
with more current equivalent products.
•
•
•
Damage due to improper installation.
Subsequent damage to other components.
Damage caused by exposure to moisture, excessive heat, chemical cleaners,
and/or UV radiation.
Damage through negligence, misuse, accident or abuse. Repeated returns for
the same damage may be considered abuse.
•
•
•
•
•
•
•
•
•
•
Any cost or expense related to the removal or reinstallation of product.
Speakers damaged due to amplifier clipping or distortion.
Items previously repaired or modified by any unauthorized repair facility.
Return shipping on non-defective items.
Products with tampered or missing barcode labels.
Products returned without a Return Authorization (RMA) number.
Freight Damage.
This warranty is valid only for the original purchaser and is not extended to
owners of the product subsequent 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.
The cost of shipping product to Kicker.
Service performed by anyone other than Kicker.
WHAT TO DO IF YOU NEED WARRANTY OR SERVICE
HOW LONG WILL IT TAKE?
Defective merchandise should be returned to your local Authorized Stillwater
Designs (Kicker) Dealer for warranty. Assistance in locating an Authorized Dealer
confirm that a dealer is authorized by asking to see a current authorized dealer
window decal.
Kicker strives to maintain a goal of 72-hour service for all electronics (amplifiers,
crossovers, equalizers, etc.) returns. Delays may be incurred if lack of replacement
inventory or parts is encountered.
INTERNATIONAL WARRANTY
If it becomes necessary for you to return defective merchandise directly to
Stillwater Designs (Kicker), call the Kicker Customer Service Department at
(405)624-8510 for a Return Authorization (RMA) number. Package all defective
items in the original container or in a package that will prevent shipping damage,
and return to
Contact your International Kicker dealer or distributor concerning specific
procedures for your country’s warranty policies.
Stillwater Designs, 5021 North Perkins Road, Stillwater, OK 74075
The RMA number must be clearly marked on the outside of the package. Please
return only defective components. The return of functioning items increases your
return freight charges. Non-defective items received will be returned freight collect.
P.O. Box 459 • Stillwater, Oklahoma 74076 • U.S.A. • 405 624-8510
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
Include a copy of the original receipt with the purchase date clearly visible, and a
“proof-of-purchase” statement listing the Customer’s name, Dealer’s name and
invoice number, and product purchased. Warranty expiration on items without proof-
of-purchase will be determined from type of sale and the manufacturing date code.
Freight must be prepaid; items sent freight collect, or COD, will be refused.
is always an indicator that the sound level is too loud and
WARNING:
may permanently damage your hearing.
Please use common sense when controlling volume!
Failure to follow these steps may void your warranty. Any questions can be
directed to the Kicker Customer Service Department at (405) 624-8510.
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04202005+04KX.4
11
KX Amplifier
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