Manuals / Boss Audio Systems / Car Audio and Video / Car Amplifier

Boss Audio Systems CX600, cx450, CX250, CX1800, CX1250 Troubleshooting, Symptom Possible Remedy

Models: CX1250 CX250 CX750 CX950 cx450 CX1000 CX600 CX1800 CX800 cx550 CX650

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Troubleshooting

If you experience operation or performance problems with this product, compare your installation with the electrical wiring diagram on the previous pages. If problems persist, read the following troubleshooting tips which may help eliminate the problems.

SYMPTOM

 

POSSIBLE REMEDY

 

Amplifier will not

Check to make sure you have a good ground connection.

power up.

Check that the Remote Input (Turn-On) has at least 3VDC.

 

 

Check that there is battery power on the (+) terminal.

 

 

Check that there is at least 12v.

 

 

Check all fuses, replace if necessary.

 

 

Make sure that the Protection LED is not illuminated. If it is lit, shut off

 

 

the amplifier briefly, and then repower it.

 

 

 

Protection LED

Check for short circuits on speaker leads.

comes on when

Turn down the volume control on the head unit to prevent overdriving.

amplifier is

Remove speaker leads, and reset the amplifier. If the Protection LED still

powered up.

comes on, then the amplifier is faulty and needs servicing.

 

 

 

No output.

Check that all fuses are OK.

 

 

Check that amplifier is properly grounded.

 

 

Check that the Remote Input (Turn-On) has at least 3VDC.

 

 

Check that the RCA audio cables are plugged into the proper inputs.

 

 

Check all speaker wiring.

 

 

 

Low output.

Reset the Level Control.

 

 

Check the Crossover Control settings.

 

 

 

Audio present in

Check the RCA interconnect cables.

only one channel.

Check all speaker wiring.

 

 

 

High hiss in the

Disconnect all RCA inputs to the amplifiers. If the hiss disappears, then

speakers.

plug in the component driving the amplifier and unplug its inputs. If the

 

 

hiss disappears at this point, go on until the faulty/noisy component is

 

 

found.

 

 

It is best to set the amplifier's input level control as low as possible. The

 

 

best subjective signal-to-noise ratio is achieved in this manner. Try to set

 

 

the head unit as high as possible (without distortion) and the amp input

 

 

level as low as possible.

 

 

 

Squealing noise

Check for improperly grounded RCA interconnects.

from speakers.

 

 

 

 

 

Distorted sound.

Check that the Input Level Control is set to match the signal level of the

 

 

head unit. Always try to set the Input Level as low as possible.

 

 

Check that all crossover frequencies are properly set.

 

 

Check for short circuits on the speaker leads.

 

 

 

Amplifier gets

Check that the minimum speaker impedance for the amp model is correct.

very hot.

Check that there is good air circulation around the amp. In some

 

 

applications, it may be necessary to add external cooling fan(s).

 

 

 

Engine noise

This is usually caused by poor quality RCA cables,which can pick up

(static type)

radiated noise. Use only the best quality cables, and route them away

 

 

from power cables.

 

Engine noise

Check that speaker leads are not shorted to the vehicle chassis.

(alternator

Check that the RCA grounds are not shorted to the vehicle chassis.

whine)

Check that the head unit is properly grounded.

 

 

CHAOS EXXTREME MOSFET Amplifier User’s Manual - page 20

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Boss Audio Systems CX600, cx450, CX250, CX1800, CX1250, CX1000, CX950, CX750, CX800 Troubleshooting, Symptom Possible Remedy
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CX1250, CX250, CX750, CX950, cx450 specifications

Boss Audio Systems is a renowned name in the world of automotive audio equipment, with a range of products that cater to different preferences and audio needs. Among their lineup, the CX series stands out for delivering impressive sound quality and advanced features. The CX650, CX550, CX800, CX600, and CX1000 models are designed to enhance the in-car audio experience through various innovations and powerful performance.

The Boss CX650 is a robust amplifier that offers a peak power output of 650 watts, making it perfect for those seeking to amplify their vehicle’s sound system. With a compact design, it is designed for ease of installation, and it integrates seamlessly with most audio systems. The CX650 features a variable low-pass filter, allowing users to customize the sound output for a more tailored listening experience. Its MOSFET power supply ensures complete control and high efficiency.

Next, the CX550 variant, rated at 550 watts peak power, is ideal for users looking for an entry-level yet powerful solution. It boasts high-level inputs, allowing for easy integration with factory stereos without the need for an aftermarket head unit. The CX550 also includes bass boost circuitry, which enhances low frequencies for a richer audio experience.

The CX800 model steps it up a notch with its impressive 800 watts of peak power output. This amplifier is built with a dedicated subwoofer output and includes a thermal protection circuit, which safeguards against overheating. Its low-level RCA inputs provide flexibility in connecting to various audio sources, ensuring high fidelity sound quality.

For those looking for a balanced approach, the CX600 offers a peak power output of 600 watts. This amplifier is engineered with a variable bass boost feature and a fully adjustable crossover for audio enthusiasts who want to refine their listening preferences. The durable build ensures longevity, catering to even the most demanding audio users.

Lastly, the CX1000 is the powerhouse of the series, boasting an astounding peak power output of 1000 watts. Known for its high-performance capabilities, it includes a built-in crossover and bass remote control. The CX1000 is characterized by its extensive range of customization options and superior sound clarity, making it ideal for audiophiles who appreciate a deep and resonant bass response.

Overall, the Boss Audio Systems CX series amplifiers provide a wide spectrum of features and technologies, ensuring that there is a suitable model for everyone. Their focus on power, durability, and user-friendly design makes them a favorite among car audio enthusiasts looking to enhance their audio experience on the road.