Trouble shooting, LED is GREEN, no output

Help

Trouble shooting

If your amplifier does not appear to be working, check obvious things first such as blown fuses, poor or incorrect wiring connections, crossover and gain controls set

incorrectly, etc.

There is one LED on the end panel of your Kicker KX series amplifier, it will turn from red to green depending on status. When the LED is green this indicates the amplifier is turned on and no trouble exists. If the LED turns red this indicates that the protection circuitry (SORT) is engaged.

The power indicator on top of the amplifier which illuminates the model badge follows the same function as the Green LED.

LED off, no output:

With a Volt Ohm Meter (VOM) check:

+12 volt power terminal (should read +12V to +16V). Remote turn-on terminal (should read +12V to +16V). Ground terminal.

LED is GREEN, no output:

Check RCA connections.

Test speaker outputs with known good speaker. Substitute known good source unit.

Check for signal on RCA cable with VOM meter in AC position.

LED is RED, no output:

1.) Amp is very hot.

Thermal protection is engaged. Check for proper impedance at speaker terminals. Also check for adequate airflow around amplifier.

2.) Amp shuts down only while vehicle is running. Voltage protection is engaged. Voltage to the amplifier

is not within the 9-16 volt operating range. Have automobile charging/electrical system inspected.

3.) Amp will only play at low volume levels.

Short circuit protection is engaged. Check for speaker wires shorted to each other or the vehicle chassis. Damaged speakers or operating below minimum impedance will also cause this.

No output from one channel:

Check balance control on head unit.

Check RCA & speaker connections for that channel. Swap RCA connections from left to right.

If problem changes sides then you have a bad RCA cable or source unit problem.

Swap speaker connections from left to right.

If problem changes sides then you have a bad speaker cable or bad speaker.

8	KX Amplifier

KX.4 Series specifications

The Kicker KX.4 Series amplifiers embody a perfect blend of innovative technology and high-performance audio. Designed for those who demand both power and clarity, these amplifiers are an excellent choice for car audio enthusiasts looking to elevate their listening experience.

One of the standout features of the KX.4 Series is its impressive power output. With models capable of delivering up to 1,000 watts of maximum power, the KX.4 amplifiers can drive multiple speakers with ease, ensuring every note is delivered with precision and impact. The amplifiers are built with a Class D design, known for its efficiency and compact size, allowing for more power in a smaller footprint.

The KX.4 Series incorporates direct wiring connections, enhancing installation ease and reliability. The use of high-quality components ensures that these amplifiers can handle the demands of a powerful audio system while maintaining thermal efficiency. This is particularly important in car environments where heat can become an issue.

Another notable characteristic of the KX.4 amplifiers is their advanced Onboard DSP (Digital Signal Processing). This technology allows users to fine-tune their audio settings with precision, adjusting bass, treble, and midrange levels to create a sound profile that is just right for their preferences. The DSP also includes built-in crossovers and EQ settings that enhance sound quality and performance.

The KX.4 Series features durable construction, including a robust aluminum heat sink that effectively dissipates heat and keeps the amplifier cool during extended use. Additionally, the amplifier's design is both sleek and modern, fitting seamlessly into a variety of car interiors.

Kicker's KX.4 amplifiers also come equipped with protection circuitry that safeguards against shorts, thermal issues, and overloads, ensuring long-term reliability. The user-friendly interface and LED indicators provide clear feedback on the amplifier's status, making it easy to monitor performance.

In summary, the Kicker KX.4 Series amplifiers are ideal for those seeking high power, compact design, and advanced audio control. With features like their efficient Class D design, onboard DSP, and durable construction, these amplifiers provide an exceptional audio experience for any car audio enthusiast looking to amplify their journey on the road.