Input Level: The RCA inputs on KICKER ZX 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.

Crossover Switch (ZX300.1): Use the XOVER switch on the end panel of the amplifi er to set the internal crossover to OFF or LO. When the switch is set to OFF, a full bandwidth signal will be amplifi ed. Set the switch to LO if you want the amplifi er’s internal crossover to serve as a low-pass fi lter. Never change the crossover “OFF/LO” switch setting with the audio system on!

Crossover Control (ZX400.1, ZX500.1, ZX750.1): The variable crossover on the top of the amplifi er allows you to adjust the crossover frequency from 50–200Hz. The setting for this control is subjective; 80Hz is a good place to start.

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.

Bass Boost Switch (ZX300.1): Turn the bass boost on to increase bass by 12db at 40 Hz. If you enable the bass boost, it may be necessary to reduce the input gain control on the amplifi er to avoid clipping.

Bass Boost Control (ZX400.1, ZX500.1, ZX750.1): The variable bass boost control on the top of the amplifi er is designed to give you increased output, 0–18dB, at 40 Hz. 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-ZXRC (not included with ZX300.1, ZX400.1, ZX500.1): When the crossover on your amplifi er is set to LO pass, you have the ability to control the output level of the amplifi er remotely. To mount the ZXRC remote bass level control, simply screw the metal bracket to the chosen location, then slide the housing onto the bracket until it snaps into place. Run the cable from the controller to the “Remote Bass” jack on the amplifi er chassis.

ZXRC* REMOTE BASS

INSTALLATION

1. mount the metal bracket

2. slide the housing until it snaps

 

into the metal bracket

back view

 

AUTO

INPUT

L

R

L

R

TURN ON

SENSITIVITY

 

 

 

XOVER

+12V DC AUDIO

LO

 

 

 

OFF HI LO

OFFSET

HI

 

INPUT

 

OUTPUT

REMOTE BASS

SPKR +

SPKR -

SPKR +

SPKR -

* ZXRC included with ZX750.1 ONLY

4-conductor phone cable

5

2010 ZX 300.1 400.1 500.1 750.1 RevC.indd 5

10/15/2009 10:55:55 AM

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Kicker ZX300.3, ZX300.4, ZX300.2 ZXRC* Remote Bass Installation, Slide the housing until it snaps Into the metal bracket
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ZX300.4, ZX300.2, ZX300.3 specifications

Kicker, a leader in the audio industry, has consistently impressed audiophiles with innovative amplifiers, and the Kicker ZX series exemplifies that commitment to quality and performance. The Kicker ZX300.3, ZX300.2, and ZX300.4 models are integral parts of this line, showcasing distinctive features and cutting-edge technology tailored for car audio enthusiasts.

The Kicker ZX300.3 is a 3-channel amplifier that delivers powerful sound with a compact design. It features a maximum power of 300 watts, with 100 watts RMS for each of its two channels and an additional 100 watts for the sub-channel. This versatility allows users to drive both speakers and a subwoofer simultaneously, making it an ideal choice for those looking to enhance their vehicle's sound system. The ZX300.3 is also equipped with a variable crossover that allows for fine-tuning of the frequency response, ensuring that every note is crisp and clear.

Next in the lineup is the Kicker ZX300.2, a 2-channel amplifier that offers a robust power output of 300 watts. With 150 watts RMS per channel, this model delivers a clean and powerful performance that brings the music to life. Its compact form factor means it can fit snugly in tight spaces, making it suitable for a variety of vehicles. The ZX300.2 is designed with a variable high-pass crossover, providing flexibility for different applications and speaker types, helping users achieve the best sound possible.

Completing the series is the Kicker ZX300.4, a 4-channel amplifier that rounds out the lineup with impressive power and functionality. It outputs a maximum of 300 watts, providing 75 watts RMS per channel. This makes it an excellent option for those looking to power four speakers in a full-range setup or to run a combination of speakers and a subwoofer. Like its counterparts, the ZX300.4 features a variable crossover network, allowing users to customize the sound to fit their preferences.

All three models come with a durable heat-sink design that helps maintain optimal operating temperatures, ensuring reliability during long listening sessions. They also encompass Kicker’s signature durability, designed to withstand the rigors of vehicle use.

In summary, the Kicker ZX300.3, ZX300.2, and ZX300.4 amplifiers offer a range of features that cater to diverse audio needs, whether it's driving speakers, powering subwoofers, or achieving a balanced sound. With their advanced technologies and flexible configurations, these amplifiers are exceptional choices for car audio enthusiasts seeking high-quality sound without compromise.
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