Kicker ZX450.2 User Manual

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 ZX 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. Ideally, when connecting the source unit to the amplifi er, the ZX amplifi er’s 
input level switch should be set to “LO” and a low-level signal should run from the source unit’s stereo RCA 
output to the stereo RCA input on the end panel of the amplifi er using RCA interconnect cable. If a low-level 
stereo RCA output is not available on the source unit, the signal can be delivered to the amplifi er using the 
high-level speaker outputs on the source unit. Set the input level switch on the end panel of the amplifi er to “HI”. 
Crimp and solder RCA connectors to the end of the speaker wire running from the high-level speaker outputs 

Authorized KICKER Dealer:

Purchase Date:

Model Number:

Serial Number:

RMS Power, all channels driven
@ 14.4V, 4

Ω stereo,  1% THD+N

@ 14.4V, 2

Ω stereo,  1% THD+N

@ 14.4V, 4

Ω mono,  1% THD+N

70W x 2
100W x 2
200W

150W x 2
225W x 2
450W

Length

10¼” (260mm)

16¾” (425mm)

Height

2-1/8” (54mm)

Width

9-5/8” (244mm)

Frequency Response ± 1dB

20Hz–20kHz

Signal-to-noise Ratio

>95dB, A-weighted, re: rated power

Input Sensitivity

Low Level: 125mV–5V
High Level: 250mV–10V

Selectable Electronic Crossover

Variable HI, LO, or OFF (bypass) | 50–200Hz, 12dB/octave

Bass Boost

Variable 0–18dB @ 40Hz

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. 

2010 ZX 200.2 450.2 RevD.indd   2

2010 ZX 200.2 450.2 RevD.indd   2

9/15/2009   4:44:18 PM

9/15/2009   4:44:18 PM