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”. 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.

Model

External Fuse

Power/Ground Wire

KICKER Wiring Kit

 

(sold separately)

 

 

KX400.4

1 x 80 Ampere

4 Gauge

PK4, CK44, ZCK44

2013 KX 4-Channel Amps Rev C.indd 3

3

10/24/2012 4:31:56 PM

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Kicker KX400.4 owner manual Installation, Model External Fuse Power/Ground Wire Kicker Wiring Kit
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KX400.4 specifications

The Kicker KX400.4 is part of Kicker's renowned lineup of amplifiers, designed to deliver powerful and crystal-clear audio performance for car enthusiasts and audiophiles alike. This four-channel amplifier is engineered to provide incredible sound quality while maintaining efficiency and durability, making it a perfect choice for powering a complete audio system.

Among its main features, the KX400.4 boasts an impressive 400-watt output, ensuring that it can handle even the most demanding speaker setups. With a maximum power rating of 100 watts per channel at 4 ohms and 200 watts per channel at 2 ohms, it can drive a wide range of speaker configurations for optimal audio performance. The amplifier also features a flexible crossover system, allowing users to customize frequency ranges for each channel. This enables seamless integration of various components, ensuring that subwoofers, mids, and highs all work together harmoniously.

One of the standout technologies in the KX400.4 is its advanced thermal management system, which helps prevent overheating during extended use. The amplifier utilizes a full-range Class D circuit design, promoting high efficiency while minimizing heat generation. This not only extends the lifespan of the unit but also allows for a compact design that can be easily installed in various vehicles, even those with limited space.

The KX400.4 incorporates a variable bass boost feature, giving users the ability to enhance low-frequency response according to personal preferences. This allows for a customizable listening experience, providing the flexibility to adjust the bass levels on-the-fly. Additionally, the amplifier is equipped with a signal sensing input, simplifying installation by enabling automatic turn-on when a signal is detected.

Moreover, the KX400.4 is built with high-quality components, including a robust aluminum chassis that offers both durability and aesthetic appeal. The amplifier's design features top-quality RCA inputs and speaker outputs, ensuring secure connections for optimal performance.

In summary, the Kicker KX400.4 sets a high standard in car audio amplification, combining power, efficiency, and a range of user-friendly features. Its advanced technologies and solid construction make it an excellent choice for anyone looking to elevate their in-car listening experience. With this amplifier, Kicker continues to demonstrate its commitment to delivering exceptional automotive audio solutions for enthusiasts around the world.
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