VERTICAL MOUNTING

amplifi er side panel

double-slotted bracket

hex screws

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 CX 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 CX 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”. 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

core conductor

to amplifi er

KICKER ZISL

high-level speaker

outputs

 

 

 

+

 

OR

to amplifi er

 

+

 

shield

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.

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2012 CX 4-Channel Amps Rev F.indd 3

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Kicker CX300.4 owner manual Vertical Mounting, Amplifi er side panel Double-slotted bracket Hex screws

CX300.4 specifications

The Kicker CX300.4 is a powerful and versatile four-channel amplifier designed to enhance your vehicle’s audio system. Known for its reliability and impressive performance, this amp can drive your speakers and subwoofers with ease, delivering crystal-clear sound even at high volumes.

One of the standout features of the CX300.4 is its compact design, which allows it to fit into tight spaces without compromising sound quality. Measuring just 12.6 inches in length, it can be installed under the seat or in the trunk of most vehicles. Despite its small size, the amplifier packs a punch with 75 watts per channel at 4 ohms, making it suitable for various speaker configurations.

The CX300.4 utilizes advanced technologies to ensure optimal sound quality and performance. Its Class D amplifier architecture not only makes it energy-efficient but also minimizes heat generation. This design allows for a lightweight unit that can be run for extended periods without overheating. Additionally, the amplifier features a low-level input, which helps in maintaining the clarity and precision of the audio signal, preventing distortion even at high levels.

Another impressive aspect of the Kicker CX300.4 is its versatility in handling different setups. It comes equipped with high-pass and low-pass crossover adjustments, allowing users to tailor the audio output to match their specific speaker or subwoofer requirements. This flexibility contributes to its capability to provide a clean and powerful sound across a range of audio frequencies.

For those seeking a seamless installation experience, the CX300.4 includes speaker level inputs, making it compatible with factory radios and aftermarket head units. Users can wire it directly to existing speakers without requiring additional adapters. Installation is further simplified by the included mounting hardware and instructions, making it a user-friendly choice for both novices and experienced audio enthusiasts.

In conclusion, the Kicker CX300.4 amplifier combines its compact size, robust power output, and advanced technology to deliver an exceptional audio experience. Whether enhancing your factory setup or powering aftermarket speakers, this amplifier stands out for its reliability and performance. With its multitude of features and user-friendly design, the Kicker CX300.4 is an excellent choice for anyone looking to upgrade their vehicle's sound system.