My Amp Is on But No Sound from Speakers (Resolved!)

James Wood

Is your amplifier powered, but no sound from the speakers? Read our articles for tips on how to troubleshoot and fix the frustrating issues on your sound system. Fix these challenges, enjoy the audio, and restore the standard system functionality.

This is the right place for you if you have sound issues with the speaker when the amplifier is powered on. One of the frustrating situations with the sound systems is the great silence when you turn on your amplifier. Such a scenario is perplexing, but you should not get worried and never panic because we got you. In this article, we will share some simple tips and tricks to fix the sound issues on your system speakers.

We reviewed all the latest and often noted guides to diagnose as well as resolve the sound issues to restore your system and sound from your speakers. Please read the guidelines with us to the end and say no more sound problems to your sound system. Let us explore these solutions in detail.

Table Of Contents

Working Mechanism of the Amplifier

We want to clarify how the amplifier works to get a clear picture and move together on some possible causes of the speaker not producing sound when the Amp is powered. The basic working principles give you the factual background to locating the problem, starting from the input to the output sections. Thus, the Amp is designed to help boost the sound signal from the source to the supplies like the sub and speakers.

Hence, audio amplification is simply the increment of the audio electrical signal magnitude. It can distort the electrical signal on amp output because of the signal size or magnitude. When your Amp supports the 12-voltage power, it indicates that it can never support alternating signals beyond this voltage unless you are ready to experience clipping.

Powered Amp no sound: Causes and Troubleshooting

When you realize that you have set up your sound systems and powered Amp, but there is no sound from the speakers, there are multiple possible issues. Most of the possible causes of the sound not coming from the speakers are the potential of experiencing overstorage, overheating, overcurrent, blown amps, or a faulty power system, among many more.

Any amp that experiences the above issues will fail to produce sound or send the sound frequency to the speaker. Therefore, let us review possible causes and how to troubleshoot or fit them.

1. Faulty power system

When the Amp has a faulty power system, the system will not get power supplied, which means no signal is sent to the speaker. Possible causes here are that your system has a faulty connection, causing improper working. With your technical knowledge, you must inspect the setup and adjust where necessary by correctly wiring the system.

2. Defective remote wire

if your Amp has a faulty remote wire, the whole system will also not respond to the settings. It is a fact that you can never increase the volume using a faulty remote control. Then, consider turning on the Amp manually and pressing the buttons to increase the volume.

You can also decide to change the remote battery and confirm if it is working. Where there is a fault on the remote wire connecting the Amp, there will always be an issue. Therefore, before anything else, test, and if there is rust, find a way to remove and replace the bend and cuts to make a complete connection and restore the normal working condition.

3. Overvoltage-overheating and overcurrent

Multiple cases bring about overheating of your Amp. Among these conditions are faults in the circuitry, faulty cooling system, overloading, keeping the Amp running for long, overpowering, and operating the Amp in direct sunlight as well as on hot surfaces.

As long as your Amp gets overheated, it will shift to the protection mode, but when the overheating is caused by the overcurrent or rather overvoltage, then there is the possibility of blowing instead of protection mode. Therefore, in case you detect such changes in the temperature and no sound signal is produced, consider switching off. Then, take the necessary steps to disconnect, impact, and fix the cause of the overheating to restore the functionality of the Amp.

4. Mismatched impedance

there is a possibility that you can mismatch the speaker and amp impedance. This causes issues with the sound production even when you turn on your Amp. Therefore, even an amp only works with the speaker featuring a particular impedance. When impedance is above or below the Amp, there is no sound frequency produced. Therefore, check the impedance on both devices and match them based on their manual to get the actual output sound.

5. Blown Fuse

The subwoofer and Amp come with the in-built fuse or what we can call the circuit breaker. This is just for protection from the overcurrent or surge. When your fuse is tripped, it could cause sound failure in your system. Therefore, though I recommend replacing the fuse, you must start by resolving what caused the fuse to blow and rectify.

6. Faulty power wire

We all understand that the work of a power wire is to deliver current to the Amp here, while a power signal wire links the Amp with your speakers. When either of the two wires burns out, there is a possibility of not producing sound. One of the causes of the burn on the power wire is that the system converts the current into heat, and when the wire gets more heating, it burns since it no longer sustains the what.

Thus, the sound signal will not reach the speaker. Therefore, only use the recommended current on the Amp to avoid such cases. Another thing affecting current flow is the corrosion and incisions. When a wire is affected by this, it will not pass enough current to the Amp. Thus, to fix these power cable issues, you must first switch off the main and replace or repair the damaged power wire. The multimeter is the ideal tool to inspect the functionality of the cables and the continuity of the circuit.

7. Speaker connection polarity mismatch

This is also one of the major reasons for the no sound on your speaker when the Amp is on. Avoid misaligning the polarities of the speakers on multiple ports. When you interchange the polarity of the speaker wires on the Amp, you will never get the sound produced in your speakers. Always check the speaker wire connection and get them connected properly.

8. Short Circuit

The often-seen electrical promise in the sound system is the short circuit. This brings about many issues, and it can result in your fuse blowing. An unexpected increase in the current level in the circuit brings about such short circuits. It might initially come from two wires coming into contact, and it interrupts the standard functionality of the Amp. To check and resolve the short circuit issues, use the multimeter tools. If you can confirm the connection of the positive to negative terminals, go for the physical signs, etc.

Other General possible causes and solutions.

Many other issues might cause speakers not to produce sound. Among the major ones are the amp volume issues. Check the volume level and ensure you are set to the right beat so as not to cause distortion or damage. Also, your Amp might be in the protection mode for many reasons when enabled. To resolve the issues, check the model, seek support from the manual, and fix any issue that causes the subwoofer to shift into the protection mode as the basis of finding a long-term solution.

The last move is to check the amp and subwoofer settings. Your system setting might be the cause of all this. Check and ensure everything is perfectly set. Enable the sound system on the subwoofer with the right dB level. Also, get the correct Amp LPF settings as well as HPF frequency.. your amplifier still needs proper grounding. Improper grounding shifts the Amp into protection mode and doesn't send the sound signal to the speakers. Thus, justify that everything is set to okay.


Many causes are attributed to the lack of sound on your sound steps, even when you turn on the Amp. Therefore, in the above article, we have discussed some of the possible causes and how to troubleshoot the issues, check the components, and restore the connection. Grasp the above issues, check the efficiency of the devices, and reset your speakers with ideal compatibility to fix. Follow the guide and resolve the challenges to get your quality sound again.

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