Pro Tip: To get the best performance from your new KICKER Amplifi er and extend the warranty by 1 year, use
genuine KICKER accessories and wiring.
INSTALLATION
Mounting: Choose a structurally sound location to mount your KICKER amplifi er. Make sure there are no items
behind the area where the screws will be driven. Choose a location that allows at least 4” (10cm) of open
ventilation for the amplifi er. If possible, mount the amplifi er in the climate-controlled passenger compartment. Drill
four holes using a 7/64” (3mm) bit and use the supplied #8 screws to mount the amplifi er.
Wiring: Disconnect the vehicle’s battery to avoid an electrical short. Then, connect the ground wire to the
amplifi er. Make the ground wire short, 24” (60cm) or less, and connect it to a paint-and-corrosion-free, solid,
metal area of the vehicle’s chassis. Adding an additional ground wire of this same gauge (or larger) between the
battery’s negative post and the vehicle chassis is recommended.
The KX amplifi er has dual input sensitivity differential RCA inputs which will receive either high or low level signals
from your car stereo’s source unit. A high-level signal can be run from the source unit’s speaker outputs to the
stereo RCA input on the end panel of the amplifi er using the KICKER ZISL as shown (make sure you set the KX
amplifi er’s input level switch to “HI”). Alternatively, the signal can be delivered to the amplifi er using the low-level
RCA outputs on the source unit. Set the input level switch on the end panel of the amplifi er to “LO”. Either input
method will provide a low-level output signal at the RCA output, which effectively passes the audio signal to
another amplifi er or component. Keep the audio signal cable away from factory wiring harnesses and other
power wiring. If you need to cross this wiring, cross it at a 90 degree angle.
source unit
high-level speaker
outputs
core conductor
+
–
Install a fuse within 18” (45cm) of the battery and in-line with the power cable connected to your amplifi er. If you
ever need to remove the amplifi er from the vehicle after it has been installed, the ground wire should be the last
wire disconnected from the amplifi er--just the opposite as when you installed it.
Mini-USB for internal use only; do NOT remove or tamper. KICKER is not responsible for any
damage to equipment resulting from connections made to this port.
Automatic Turn-On Selection: The KX series offers three different automatic turn-on modes that can be
selected on the end panel; +12V, DC Offset, and Audio. Using either the DC Offset or Audio mode causes the
REM terminal to have +12V out for turning on additional amplifi ers.
• Remote Turn-On: Set the switch to +12V to use the remote turn-on lead from your source unit. Run 18
gauge wire from the Remote Turn-On Lead on your source unit to the terminal labeled REM between the
amplifi er’s positive and negative power terminals. This is the preferred automatic turn-on method.
• DC Offset Turn-On: If Remote Turn-On is not an option, the next best setting is DC Offset. The DC Offset
mode detects a 6V DC offset from the HI-Level speaker outputs when the source unit has been turned on.
• Signal Sense Turn-On: The Audio setting is the fi nal alternative for Automatic turn-on. This is a Signal Sense
turn-on method that detects the incoming audio signal from your source unit and automatically turns on the
amp. This turn-on method will not work properly if the input gain control is not set appropriately.
Input Level: The RCA inputs on KICKER KX amplifi ers are capable of receiving either Hi or Low-level signals
from your source unit. If the only output available from your source unit is a Hi-Level signal, simply press in the
Input Level switch on the amplifi er. Refer to the wiring section of this manual for additional instructions.
Input Gain Control: The input gain control is not a volume control. It matches the output of the source unit to
the input level of the amplifi er. Turn the source unit up to about 3/4 volume (if the source unit goes to 30, turn it
to 25). Next, slowly turn (clockwise) the gain on the amplifi er up until you can hear audible distortion, then turn it
down a little.
Adjustable Subsonic Filter: The variable subsonic fi lter will provide a cut-off point for lower frequencies
(10–80Hz) that could potentially damage your speakers from over-excursion, along with wasting your amplifi er’s
power. The setting for this control should be set relative to your speaker’s low-frequency capability.
Crossover Control: The variable crossover on the amplifi er is always active, and allows you to adjust the LOPASS crossover frequency from 40–160Hz. The setting for this control is subjective; 80Hz is a good place to
start.
KICK EQ+ Bass Boost Control: The variable bass boost control on the side of the amplifi er is designed to
give you increased output, 0–18dB, at the selected frequency. A higher BANDWIDTH (Q) setting will result in
a sharper cut at the frequencies above and below the selected center frequency. The setting for this control is
subjective. If you turn it up, you must readjust the input gain control to avoid clipping the amplifi er.
Remote Bass-KXRC: With the optional KXRC remote bass level control, you have the ability to control the
output level of the amplifi er remotely. To surface-mount the KXRC remote bass level control, simply screw the
remote to the chosen location, then run the cable from the controller to the “Remote Bass” jack on the amplifi er
panel. Do NOT connect/disconnect while the amplifi er is on. See page 6 for installation.
Surface-mount the KXRC remote
using the supplied screws.
back view
Connect the supplied cable to the KXRC remote and the
Remote Bass jack on the amplifi er
TROUBLESHOOTING
If your amplifi er does not appear to be working, check the obvious things fi rst such as blown fuses, poor or
incorrect wiring connections, incorrect setting of crossover switch and gain controls, etc. There is a Protection
(PRT) LED on the side panel of your Kicker KX series amplifi er. Depending on the state of the amplifi er and the
vehicle’s charging system, the LED will either glow red or be off.
Red (PRT) LED fl ickering with loud music? The red (PRT) LED indicates low battery voltage. Check all the
connections in your vehicle’s charging system. It may be necessary to replace or charge your vehicle’s battery or
replace your vehicle’s alternator.
Red (PRT) LED on, no output?Amplifi er is very hot = thermal protection is engaged. Test for proper
impedance at the speaker terminals with a VOM meter (see the diagrams in this manual for minimum
recommended impedance and multiple speaker wiring suggestions). Also check for adequate airfl ow around
the amplifi er. Amplifi er shuts down only while vehicle is running = voltage protection circuitry is engaged.
Voltage to the amplifi er is not within the 10–16 volt operating range. Have the vehicle’s charging and electrical
system inspected. Amplifi er will only play at low volume levels = short circuit protection is engaged. Check
for speaker wires shorted to each other or to the vehicle chassis. Check for damaged speakers or speaker(s)
operating below the minimum recommended impedance.
No or low output?Check the balance control on source unit Check the RCA (or speaker input) and
speaker output connections.
Alternator noise-whining sound with engine’s RPM?Check for damaged RCA (or speaker input) cable
Check the routing of RCA (or speaker input) cable Check the source unit for proper grounding Check
the gain settings and turn them down if they are set too high.
Ground Noise? KICKER amplifi ers are engineered to be fully compatible with all manufacturers’ head units.
Some head units may require additional grounding to prevent noise from entering the audio signal. If you are
experiencing this problem with your head unit, in most cases running a ground wire from the RCA outputs on the
head unit to the chassis will remedy this issue.
CAUTION: When jump starting the vehicle, be sure that connections made with jumper cables are correct.
Improper connections can result in blown amplifi er fuses as well as the failure of other critical systems in the
vehicle.
If you have more questions about the installation or operation of your new KICKER product, see the Authorized
KICKER Dealer where you made your purchase. For more advice on installation, click on the SUPPORT tab on
the KICKER homepage, www.kicker.com. Choose the TECHNICAL SUPPORT tab, choose the subject you are
interested in, and then download or view the corresponding information. Please E-mail support@kicker.com or
call Technical Services (405) 624-8583 for unanswered or specifi c questions.
KX400.1
200 x 1 @ 4 ohms, 14.4VDC, 1% THD, CEA-2006B (Watts)
Signal to Noise Ratio -75dB CEA-2006B (ref: 1W, A-weighted)
KX800.1
400 x 1 @ 4 ohms, 14.4VDC, 1% THD, CEA-2006B (Watts)
Signal to Noise Ratio -75dB CEA-2006B (ref: 1W, A-weighted)
KX1200.1
600 x 1 @ 4 ohm, 14.4VDC, 1% THD, CEA-2006B (Watts)
Signal to Noise Ratio -75dB CEA-2006B (ref: 1W, A-weighted)
KX1600.1
800 x 1 @ 4 ohms, 14.4VDC, 1% THD, CEA-2006B (Watts)
Signal to Noise Ratio -75dB CEA-2006B (ref: 1W, A-weighted)
KX2400.1
1200 x 1 @ 4 ohm, 14.4VDC, 1% THD, CEA-2006B (Watts)
Signal to Noise Ratio -75dB CEA-2006B (ref: 1W, A-weighted)
KICKER will now provide a threeyear warranty with all KX-Series
Amplifi er purchases paired with a
qualifying KICKER Installation Kit* .
This extends the standard warranty by an additional
year. Amplifi er and Kit must be purchased from an Authorized KICKER Dealer.
KICKER KX amplifi er success is currently at an unheard-of rate, making the extended
warranty program even more benefi cial to you.
Using poor-quality, under-spec wiring kits will impede KX amplifi er performance.
A superior-quality KICKER installation Kit is guaranteed to extend the life of KX
amplifi ers.
The new extended warranty applies only to KICKER amplifi ers and accessories sold to consumers by Authorized
KICKER Dealers in the United States of America or its possessions. It also only applies to the original purchaser of
KICKER amplifi ers and accessories. One warranty extension per amplifi er is allowed regardless of the number of amplifi er
installation kits purchased. This program does not apply to “B”-stock product or factory-refurbished product.
This offer is for a limited time, so see your local Authorized KICKER Dealer soon for details.
*U.S.A. Only | EE.UU. solamente | Nur USA | Les USA Seulement
Parametric 20-80Hz; Variable Q: 1 to 5; Variable Boost, 0-18dB
400W x 1
800W x 1
600W x 1
1200W x 1
800W x 1
1600W x 1
1200W x 1
2400W x 1
Nota: Para obtener el mejor rendimiento de sus nuevos amplifi cadores KICKER, le recomendamos que use
accesorios y cableado KICKER auténticos.
INSTALACIÓN
Montaje: Escoja un lugar estructuralmente sólido para montar el amplifi cador KICKER. Asegúrese de que no
haya nada por detrás de dónde van a entrar los tornillos. Escoja un lugar en que queden por lo menos 4 plg.
(10 cm) de espacio abierto de ventilación alrededor del amplifi cador. Si es posible, monte el amplifi cador en el
compartimiento de pasajeros, con ambiente acondicionado. Haga cuatro agujeros con una broca de 7/64 de
plg. (3 mm) y monte el amplifi cador con los tornillos N° 8 que se suministran.
Cableado: Desconecte la batería del vehículo para evitar cortocircuitos. Luego, conecte un cable de conexión
a tierra al amplifi cador. El cable de conexión a tierra debe ser corto, de 24 plg. (60 cm) o menos, y debe
ir conectado a un punto sólido del chasis del vehículo en que no haya ni pintura ni corrosión. También se
recomienda instalar un cable de conexión a tierra adicional, de este mismo calibre (o de mayor calibre), entre la
terminal negativa de la batería y el chasis del auto.
El amplifi cador KX tiene entradas RCA diferenciales de doble sensibilidad de entrada que reciben señales de
alto nivel o bajo nivel de la unidad fuente del sistema estereofónico del automóvil. La señal se puede llevar al
amplifi cador desde las salidas de altavoz de alto nivel de la unidad fuente. Fije el selector de nivel de entrada del
panel de extremo del amplifi cador en la posición de alto (HI). Engarce y suelde conectores RCA al extremo del
cable de altavoz procedente de las salidas de altavoz de alto nivel de la unidad fuente y conéctelo a las entradas
RCA del panel de extremo del amplifi cador o simplifi car la instalación mediante un ZISL KICKER como se muestra a continuación. Como alternativa, puede conectar producción de su unidad fuente a las entradas RCA
del amplifi cador KX RCA. Fije el selector de nivel de entrada del panel de extremo del amplifi cador en la posición
de bajo (LO). Cualquiera de los métodos de entrada permite establecer una señal de salida de bajo nivel en la
salida RCA, lo cual, en efecto, pasa la señal de audio a otro amplifi cador o componente. Mantenga el cable de
señal de audio alejado de los arneses de cableado de fábrica y otros cables de alimentación. Si es necesario
cruzar este cableado, crúcelo en un ángulo de 90°.
Cable de salida
de altavoz de
alto nivel
cable central
+
–
Conexión a tierra o blindaje
Instale un fusible a menos de 18 plg. (45 cm) de la batería y en línea con el cable de alimentación conectado al
amplifi cador. Si alguna vez necesita desmontar el amplifi cador, el cable de conexión a tierra debe ser el último
que se desconecte del amplifi cador. Exactamente lo contrario de lo que se hace cuando se instala.