Fixed: Subwoofer Not Working But Speakers Are In 2023

Subwoofers are an essential component of a high-quality audio system, providing deep bass and a full sound experience. However, sometimes you may encounter a situation where the subwoofer not working but speakers are.

This can be frustrating and detract from the overall listening experience, leaving the sound feeling unbalanced and lacking depth.

In this post, Hookeaudio will explore some of the possible causes of subwoofer issues, such as connection problems, blown fuses or subwoofers, protect mode activation, faulty wires, incorrect settings, and damaged speakers.

We will also provide tips on how to troubleshoot and resolve the problem of subwoofer not working amp has power, so you can enjoy the full benefits of your audio system.

Why Subwoofer Not Working But Speakers Are?

Blown Subwoofer

A blown subwoofer is one possible reason why a subwoofer may not be working. A blown subwoofer occurs when one or more of the components inside the subwoofer, such as the voice coil, cone, or surround, are damaged or broken. This can result in a loss of sound output or distorted audio.

If a subwoofer is blown, it may produce no sound at all or produce a sound that is muffled or distorted. In some cases, a blown subwoofer may also produce a buzzing or rattling sound.

Connection Issues

Connection issues can be a common reason why a subwoofer is not working. Here are some possible connection issues that could be causing the problem:

Loose connections: Check that all the cables connecting the subwoofer to the amplifier or audio source are securely plugged in. If any cables are loose, this could result in no sound output.
Incorrect connection: Ensure that the subwoofer is connected to the appropriate input/output on the amplifier or audio source. Connecting the subwoofer to the wrong input/output could result in no sound or distorted sound output.
Damaged cables: Check the cables connecting the subwoofer to the amplifier or audio source for any signs of damage, such as fraying or cuts. Damaged cables can interfere with the sound signal and make the amp turns on but no sound from sub.
Faulty amplifier: If the amplifier is not working correctly, it may not be sending the correct signal to the subwoofer. Check that the amplifier is turned on and configured correctly.
Incorrect settings: Check that the subwoofer settings on the amplifier or audio source are correctly configured. Ensure that the subwoofer volume and crossover frequency are set appropriately.

Protect Mode

Protect Mode is a feature built into many subwoofers that is designed to protect the subwoofer from damage by shutting it down when it detects an electrical fault or overload.

If the subwoofer enters Protect Mode, it will typically stop producing sound, and the LED indicator on the subwoofer may flash or turn off.

Here are some reasons why a subwoofer might enter Protect Mode:

Overheating: If the subwoofer is overheating, it may enter Protect Mode to prevent damage to the internal components.
Overload: If the subwoofer is receiving too much power, it may enter Protect Mode to prevent damage to the speaker and other components.
Short circuit: If there is a short circuit in the subwoofer’s wiring or in the amplifier, the subwoofer may enter Protect Mode to prevent damage to the electrical components.
Faulty components: If there is a faulty component in the subwoofer, such as a blown fuse or a damaged capacitor, the subwoofer may enter Protect Mode to prevent further damage.

If your subwoofer is in Protect Mode, you may need to consult the owner’s manual or contact the manufacturer for guidance on how to reset the subwoofer or troubleshoot the issue. If the issue persists, you may need to seek the assistance of a professional technician to diagnose and repair the subwoofer.

Step By Step To How to Fix Subwoofer No Sound When The Amplifier Has Power

Inspect All The Control Knobs

Inspecting all the control knobs can be a useful step to take when an amp has power but no sound from subwoofers. Here’s what you can do:

Check the volume control knob: Ensure that the volume control knob on the amplifier or audio source is turned up high enough to produce sound from the subwoofer. If the volume is too low, you may not hear any sound.
Check the crossover control knob: The crossover control knob determines the frequency at which the subwoofer starts to produce sound. Ensure that the crossover control knob is set to an appropriate frequency range for the music or audio you are playing. If it is set too high or low, the subwoofer may not produce any sound.
Check the phase control knob: The phase control knob determines the timing of the subwoofer’s sound waves in relation to the other speakers in the audio system. Ensure that the phase control knob is set to the appropriate setting for your audio system.
Check the power control knob: The power control knob determines the power output to the subwoofer. Ensure that the power control knob is turned up high enough to produce sound from the subwoofer.
Check the gain control knob: The gain control knob determines the subwoofer’s sensitivity to the audio signal. Ensure that the gain control knob is set to an appropriate level for the audio system and that it is not turned down too low, preventing the subwoofer from producing sound.

Inspect The Input Cables

Inspecting the input cables is another important step to take when trying to fix a subwoofer no sound when the amplifier has power. Here’s what you can do:

Check the cable connections: Ensure that the input cables are securely plugged into the amplifier’s output and the subwoofer’s input jacks. If the cables are loose, this could prevent the subwoofer from receiving the audio signal and producing sound.
Check for damage: Inspect the input cables for any signs of damage, such as fraying or cuts. Damaged cables can interfere with the sound signal and prevent the subwoofer from working correctly.
Try different cables: If you suspect that the input cables are the problem, try using a different set of cables to connect the amplifier and the subwoofer. This will help you determine whether the issue is with the cables themselves or something else.
Check for compatibility: Ensure that the input cables are compatible with both the amplifier and the subwoofer. Some cables may not be suitable for certain types of equipment, which could prevent the subwoofer from producing sound.

Inspect The Wires

Inspecting the wires is another important step to take when trying to fix a subwoofer that is producing no sound when the amplifier has power. Here’s what you can do:

Check the wiring connections: Ensure that the wires are securely connected to the subwoofer’s input and output terminals, as well as to the amplifier’s output terminals. If the wires are loose, this could prevent the subwoofer from receiving the audio signal and producing sound.
Check for damage: Inspect the wires for any signs of damage, such as fraying, cuts, or exposed wire. Damaged wires can interfere with the sound signal and result in the amp is on but no bass.
Check for proper polarity: Ensure that the wires are connected to the correct input and output terminals, and that the positive wire is connected to the positive terminal, and the negative wire is connected to the negative terminal. If the wires are connected improperly, this could prevent the subwoofer from producing sound.
Check for wire gauge: Ensure that the wire gauge is appropriate for the power output of the amplifier and the impedance of the subwoofer. If the wire gauge is too small, it could cause subwoofer turns on but no sound or damage the amplifier.

Inspect The Fuse Of The Subwoofer

Inspecting the fuse of the subwoofer is another important step to take when trying to fix a car subwoofer not working but speakers are. Here’s what you can do:

Locate the fuse: The fuse is usually located on the back of the subwoofer, near the power cord.
Check for damage: Inspect the fuse for any signs of damage, such as a blown or melted fuse. If the fuse is damaged, it needs to be replaced.
Check the fuse rating: Ensure that the fuse rating matches the power requirements of the subwoofer. If the fuse rating is too low, it could prevent the subwoofer from producing sound, and if it is too high, it could cause damage to the subwoofer or amplifier.
Replace the fuse: If the fuse is damaged, replace it with a new fuse of the correct rating. Be sure to use a fuse of the same type and rating as the original.

Inspect The Speakers

Inspecting the speakers is a vital step to take when trying to fix subwoofer no power light.

To inspect the speakers, first, ensure that the speaker wires are securely connected to the subwoofer’s output terminals and the speaker’s input terminals.

Loose connections can prevent the subwoofer from producing sound.

Next, inspect the speakers for any signs of damage, such as torn or punctured cones, or damaged voice coils. Damaged speakers can interfere with the sound signal and prevent the subwoofer from working correctly.

Also, check that the impedance of the speakers matches the output impedance of the amplifier. Mismatched impedance can prevent the subwoofer from producing sound or damage the amplifier.

Lastly, connect the speakers to another audio source to test whether they are producing sound. If the speakers are producing sound, this indicates that the problem lies with the subwoofer or amplifier, rather than the speakers.

By inspecting the speakers, you can identify any issues and take appropriate steps to fix them, ensuring that the subwoofer produces sound when the amplifier has power.

Check Your Settings

Checking your settings is an essential step to take when trying to fix a subwoofer that is not producing sound when the amplifier has power.

Start by ensuring that the volume is turned up to an audible level, both on the amplifier and the subwoofer. If the volume is too low, it may be difficult to hear any sound coming from the subwoofer.

Next, check the crossover settings, which control how high or low the subwoofer plays in relation to the other speakers in the system. If the crossover is set too high, the subwoofer may not produce any sound at all.

Additionally, check the phase settings, which determine the timing of the subwoofer’s sound wave in relation to the other speakers in the system. If the phase is set incorrectly, it can cause the subwoofer to cancel out the sound of the other speakers.

Finally, check the input settings on the amplifier or subwoofer to ensure that the correct input source is selected.

By checking your settings and ensuring that the volume, crossover, phase, and input settings are set correctly, you can troubleshoot and fix any issues, allowing the subwoofer to produce sound when the amplifier has power.

Look for Short Circuits

Looking for short circuits is an important step to take when trying to fix a subwoofer that is not producing sound when the amplifier has power.

Short circuits can occur when there is a direct connection between the positive and negative wires or a connection between the wires and the speaker’s frame. This can cause an overload in the system and prevent the subwoofer from working properly.

To check for short circuits, turn off the amplifier and disconnect the subwoofer from the power source. Inspect the wiring on the subwoofer for any signs of damage, such as exposed wires or damaged insulation.

Check the connections between the wires and the input terminals, as well as the connections between the wires and the speaker’s frame.

If you notice any signs of damage or short circuits, you may need to repair or replace the wiring or consult a professional technician to diagnose and fix the issue.

What If Your Subwoofer Has Turned On But No Sound Is Coming Out?

If your subwoofer has turned on but no sound is coming out, there are several potential causes and troubleshooting steps to take:

Check the volume: Ensure that the volume on the subwoofer and amplifier is turned up to an audible level.
Check the cables: Inspect the cables and connections between the subwoofer and amplifier to ensure that they are securely plugged in and not damaged.
Check the input settings: Verify that the input source on the amplifier or subwoofer is correctly selected.
Check the crossover settings: Adjust the crossover settings to ensure that the subwoofer is playing at an appropriate frequency range.
Check the phase settings: Adjust the phase settings to ensure that the subwoofer’s sound wave timing is synchronized with the other speakers in the system.
Check the subwoofer cone: Inspect the subwoofer’s cone for any damage or blockages that may be preventing sound from being produced.
Check the amplifier settings: Verify that the amplifier is set up correctly and providing power to the subwoofer.

If none of these steps resolves the issue, it’s possible that the subwoofer or amplifier may be defective and require professional repair or replacement.

FAQs

Why Won’t My Subwoofer Work?

A subwoofer may not work due to a variety of reasons, such as connection issues, blown fuses or subwoofer, protect mode activation, faulty wires, incorrect settings, and damaged speakers. Identifying the root cause and taking the appropriate troubleshooting steps can help resolve the issue and restore the subwoofer’s functionality.

Why is the Car Subwoofer Not Working but the Speakers Are?

If a car subwoofer is not working but the speakers are, it’s possible that the subwoofer may be damaged or not receive power. Some possible causes include blown fuses, loose connections, and faulty wiring. Checking the power source, amplifier settings, and cables can help troubleshoot and resolve the issue.

Additionally, checking the settings and ensuring that the subwoofer is correctly configured with the other speakers in the car audio system may also help resolve the issue.

How To Tell If Subs Are Blown?

There are a few signs that subs may be blown, such as distortion or crackling sounds, lack of bass, and visible physical damage such as tears or punctures in the speaker cone.

Additionally, the subwoofer may stop working entirely or produce very weak or muffled sounds. Testing the subwoofer with a multimeter or performing a visual inspection of the speaker cone can also help confirm if the subs are blown.

If you suspect that your subs are blown, it may be necessary to replace or repair them to restore their functionality.

Why Does My Subwoofer Stop Working Randomly?

Short-circuiting is the most frequent cause of speaker failure. The signal won’t ever reach the subwoofer if there is a short in the wires carrying it. Electrical current and signal cannot enter the subwoofer if the terminals on the subwoofer are shorted.

Why is there no power to amp?

Power Cord: Check if the power cord is plugged in correctly and if it is not damaged. Try plugging the amp into a different outlet to see if there’s an issue with the amp light not coming on.
Fuse: Check if the amp has a blown fuse. If the fuse is blown, replace it with a new one of the same type and rating.
Remote Wire: Check if the remote wire is connected correctly. This wire is typically connected to the head unit or a separate remote turn-on lead, and it signals the amp to turn on when the head unit is turned on.
Ground Wire: Check if the ground wire is connected securely to a metal point on the vehicle’s chassis. A poor ground connection can prevent the amp from turning on.
Overheating: If the amp has overheated, it may not turn on until it has cooled down. Check if the amp has proper ventilation and if there’s anything blocking the cooling vents.
Internal Issues: If none of the above reasons apply, there may be internal issues that make the amp not getting power. In this case, it may be necessary to take the amp to a professional for repair or replacement.

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Conclusion

In conclusion, a subwoofer not working but speakers are is a common issue that can be caused by several factors.

By taking the time to troubleshoot and identify the root cause of the problem, you can restore the functionality of your subwoofer and enjoy the full range of sound in your audio system.

Whether it’s checking connections, inspecting wires, or testing the subwoofer, there are many steps you can take to get to the bottom of the issue.

By following the tips and suggestions for subwoofer troubleshooting in this post, you can fix subwoofer stopped working but amp is on and delivering the best possible listening experience.