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
+
–
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.
Model
External Fuse
(sold separately)
KX400.1
1 x 60 Ampere
KX800.1
1 x 100 Ampere
KX1200.1
1 x 150 Ampere
KX1600.1
1 x 150 Ampere
KX2400.1
1 x 200 Ampere
core conductor
shield
to amplifi er
OR
+
–
+
–
Power/Ground Wire
4 Gauge
4 Gauge
1/0 Gauge
1/0 Gauge
1/0 Gauge
KICKER ZISL (optional)
source unit high-level
speaker outputs
KICKER Wiring Kit
PK4, CK44, ZCK44
PK4, CK44, ZCK44
PKD1, PWB050
PKD1, PWB050
PKD1, PWB050
to amplifi er
3