Speakers Emitting High Pitched Sound [7 Easy Solutions]

The most common reasons why speakers emitting high pitched sound are alternator whine issues, ground loop interference, poor ground connection, loose battery connection. In addition, amplifier connection failure, power cable and RCA cable running together, coaxial cable connection are also responsible for this issue.

This troubleshooting guide discussed the specific step-by-step approach to solve all the above problems. And the good news is by reading this article, you will certainly fix your high-pitched speaker trouble by yourself. So let’s start:

Speakers Emitting High-Pitched Sound [7 Easy Solutions]

High-pitched sound from your speaker is quite an annoying issue. This troubleshooting guide analyzed and presented all the causes and solutions which led to this crisis. Let’s dive into the discussion:

Note: You can also read how to fix the left Speaker louder than the right.

1. Alternator Whine Issue

In most cases, speakers emit high-pitched sounds because of the alternator whine issue. When the power cables create interferences with the wires of your audio signal, then it generates a sound called alternator whine. The reasons that cause it are:

  • Poor electrical connection
  • Batteries low impedance / compromised battery
  • Electrical voltage’s difference between two points
  • Incorrectly grounded stereo
  • RCA cable’s voltage interference


Multiple causes are culprits behind the alternator whine issue but installing a noise filter in your audio system is a simple solution. The other fixing ways are given in below:

  • Check your speaker’s electrical connection and ensure that it is working perfectly
  • Replace the compromised battery or batteries with low impedance
  • Inspect the two-point voltage difference and fix it
  • Ensure the correct grounding of your car stereo
  • Make sure the RCA cables voltage is stable

2. Ground Loop Interference

Ground loop interference means the audio system’s numerous components are grounded in various surfaces. When the audio devices stay far apart from each other but connect together with a long cable, this interference occurs. The factors responsible for it are:

  • Poor wiring
  • The audio system is improperly grounded
  • Electrical equipment’s interconnection creates multiple paths to the ground


Ground connections create the closed conductive loop, thus inspecting and fixing it. You can avoid the ground loop interference problem in the following ways:

  • Avoid sharing grounds
  • Use twisted-pair wiring to minimize the ground loop area
  • Check the poor wiring and replace it
  • Ensure your audio system is properly grounded
  • Avoid interconnecting electrical equipment

3. Poor Ground Connection

Improper connection of the audio system’s ground wire is another cause for which the speakers emit a very high-pitched sound. The causes of it are:

  • The improper connection between the receptacle and circuit grounding wire
  • The audio system itself doesn’t have a ground connection
  • Old wiring systems don’t have grounding protection


First, to fix the above issue, ensure that all the audio connections on the bare metal surface are correctly connected. The other easy solutions are:

  • Ensure the receptacle and circuit grounding wire’s proper connection
  • Make sure the audio system is properly grounded
  • Ensure the wiring system’s grounding protection by replacing the old wires

4. Loose Battery Connection

Another major factor that creates issues in the sound system is the audio system’s battery connections.

Loose connection within batteries causes emitting high pitched sound from the speakers. The high-pitched sound is bound to happen when the batteries become damaged or corrupted.

Improper battery connection with the audio system and corrosion on the terminals mainly generate the speaker’s high-pitched sound.


Inspect the loose battery connection of your audio system and ensure its tight connection. Also, make sure that the battery terminals are corrosion-free. You should regularly check your audio system’s battery as it can become lousy anytime. Lastly, replace the damaged, dead, or corroded battery.

5. Amplifier Connection Failure

Operating with the cables becomes difficult if your audio system has an amplifier connection. Because while connecting the audio system’s all wires, even if a slight mistake occurs, it will cause emitting a high-pitched sound from the speakers. The leading causes of it are:

  • Too low impedance
  • Poor charging system
  • Improper speaker connection
  • The amplifier is connected to too many speakers
  • Incorrect amplifier connection
  • The amplifier is in standby mode


Inspect the speaker wires and ensure that they are not touching each other. The other fixing ways of the above problems are the following:

  • Make sure that the speaker’s all wire connections are well-grounded and perfect
  • Ensure the charging system is working perfectly
  • Avoid connecting too many speakers with a single amplifier
  • Connect the amp correctly
  • Check the amp’s mode and make sure that it’s not in standby mode

6. Power Cables and RCA Cables Running Together

Running the power cable and RCA cable together or next to each other causes colossal interference. As a result, the speaker is bound to produce a high-pitched sound. The following factors cause this issue:

  • Putting the power cable and audio signal cables together
  • Power cable’s poor shielding


Using splitters to run the power cables and RCA cables is the leading solution. Replace the poor shielding cable and ensure proper running of these two cables by keeping them away.

7. Coaxial Cables Connection

The use of coaxial cables in connecting your speakers causes massive signal interference. As a result, it significantly reduces the speaker’s performance, and the speakers produce a high-pitched sound.

In addition, the coaxial cables cause colossal noise, leading to a buzzing sound.


Instead of the coaxial cables, use the twisted pair cable in your speaker. Twisted pair cable ensures the speaker’s improved performance, and the speaker produces high-quality sound. Moreover, this pair cable reduces the high-pitched or buzz sound by reducing the system’s interference.


Does the high-pitched sound go away when you mute the outlet?

No! The high-pitched sound doesn’t go away when you mute the outlet. It may reduce for some time, but this high-pitched audio appears again after a few minutes.

Why am I getting high feedback from my speakers?

Your speaker system’s mic is directly playing back on your speaker system, and for this reason, you are getting high feedback from your speakers. Check the speaker’s box and fix this issue.

What is a high-pitched sound?

According to theory, the high-pitched sound means too high of an audio to hear. But in practice, the sound that causes an acute hearing problem or is on the edge of hearing for people is called high-pitched sound.

Is it normal for speakers to have a high-pitched sound?

No, having a high-pitched sound from the speaker is not typical, and not every speaker causes it. High-pitched sound means the speaker’s sound distortion. Thus, it can’t be normal.


Optimistically the above troubleshooting guide was quite informative, and now you know why your speakers emit a high-pitched sound.

If your speaker suddenly starts producing unusual high-level sounds, follow the above guidelines to find and fix the issue by yourself. Don’t forget to comment and let us know your speaker’s fixing attempt results. We are always here to help you.  

About Gonzalez

William Gonzalez is a passionate researcher & electronics expert who is dedicated to solve complex electronic issues. Plus, he has a passion for sharing his knowledge & expertise in this field with others. Well, he breaks down the complex technical concepts into simple terms & shares them with his readers so that they can easily troubleshoot the problems with their electronic products as well as save their pockets.

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