5 Signs That You May Have a Malfunctioning Car Amplifier

The quality of sound in your automobile is critical for the pleasure of your driving. Without a functioning amplifier, your car will be far too loud and uncomfortable for everyone in it.

If you suspect that your car amplifier is not functioning properly, look for signs like strange noises coming from it, decreased sound quality, an inability to adjust the volume or an overall lack of power. If any of these symptoms are present, it could indicate that your car amplifier is bad and needs to be replaced.

Here are some of the most common signs you need to know.

1) Doesn’t Power On

If your car amplifier doesn’t turn on, it could be due to a blown fuse or a power issue. If the fuse is blown, replace it with a new one. If the amplifier still doesn’t turn on, it may need to be checked by a professional.

If the amp isn’t working, it’s best to find the issue first before automatically deciding that the amp needs to be changed. If all the solutions don’t work, then the amplifier might be faulty and needs to be fixed or exchanged.

2) Excessive Bass or Distortion

If your car amplifier has too much bass or distortion, it could be due to a few different things. The most common cause is an incorrect setting on the amplifier. Make sure all the settings are correct and that the input gain is not too high.

If the settings are correct, then the issue could be due to a faulty speaker or the amplifier itself. If the speaker is faulty, it can be replaced. If the amplifier is the issue, it may need to be fixed or replaced.

3) Protection Mode is Constantly On

If your amplifier keeps shutting itself down, this is an indication that something is not right. The protection mode that the amplifier is activating is designed to guard it against any potential harm. If this happens too often, it could be a sign that some of the internal components are not working correctly and need to be inspected.

Check all the reasons why your car amplifier has gone into protection mode before assuming it’s a serious problem like a bad amp. Make sure it’s not something simple like a loose wire or connector.

4) Doesn’t Have Any Output

No sound coming from an amplifier could be an indication that something is wrong with the amplifier, and needs to be checked. It could be due to a faulty connection, a loose wire, or a damaged part inside the amp. It’s important to investigate the problem further to identify the exact cause.

If you have a symptom that could be caused by a problem with your amplifier, it’s best to try to figure out what the issue is before assuming that the amplifier is faulty.

5) Low Sound Quality

Low sound quality could be caused by a number of things. It could be due to a faulty connection, a loose wire, or a damaged part inside the amp. 

It could also be due to a problem with the signal source, such as a CD or vinyl record. It could also be due to the settings of the amplifier, such as the equalizer settings. 


A bad car amplifier can have a range of symptoms, from poor sound quality to distortion and buzzing. Poor power output, grounding problems, and general wear and tear can also be a sign of a bad car amplifier. It is important to recognize the signs of a bad amplifier and take steps to replace or repair it if necessary.

If you believe you have a bad amplifier, Muritronix can help. We offer car audio amplifier repair to get your unit up and running in no time. Get in touch with us today to learn how.