Repairing Guides

how to repair a powered subwoofer

by Reba Wunsch Published 3 years ago Updated 2 years ago
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Verify your cables are plugged in properly, and then plug the stereo system back in and turn the volume and EQ all the way down. Turn on the stereo and slowly turn up the volume and the bass EQ to see if you have found the issue. Play music with a lot of bass to verify the subwoofer is working.

Full Answer

How to fix a blown subwoofer like a pro?

Steps to fix a blown subwoofer: A complete guide

  • Step-1: Check the voice coil. Before you get started, check each and every part of the subwoofer really carefully. ...
  • Step-2: Check the speaker cone. ...
  • Step-3: Detach the speakers. ...
  • Step-4: Separate the voice coil and speaker cone. ...
  • Step-5: Fix the voice coil: It’s fixing time! ...
  • Step-6: Fix the speaker frame. ...
  • Step-7: Reassemble and fix other components. ...

How to troubleshoot no sound coming from an Active Subwoofer.?

There is no sound from an active subwoofer connected to the television.

  • Ensure the subwoofer is connected to the MIX or SUB output on the stereo system or TV.
  • Ensure the power cord of the subwoofer is connected to a working AC outlet.
  • Turn on the subwoofer.
  • Ensure the subwoofer has not been muted.
  • Increase the volume level on the subwoofer.

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How to properly install a subwoofer in your car?

Part 3 Part 3 of 5: Connecting the Subwoofers to the Stereo

  1. Run the remote and RCA wires from the trunk to the stereo head. ...
  2. Pull out the stereo head to access the wires behind it. In a lot of cars, the stereo stays attached to its enclosure through a series of plastic clips.
  3. Plug the RCA cable into the colored connectors on the stereo. ...
  4. Connect the blue remote wire to the blue stereo wire. ...

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How do I hook up my subwoofer?

You can hook up a car subwoofer to a home stereo directly if:

  • You have a subwoofer or more than one subwoofer that can be wired for at least 8 ohms total. ...
  • Your home stereo or amp can handle 4 ohm speakers (most can’t so let’s ignore this).
  • Using workarounds: this includes using a small 4-ohm capable amp between the receiver and sub or an inline resistor to bring up the speaker load. ...

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How do you troubleshoot a powered subwoofer?

You never want to connect or disconnect any cables while anything is on, lest something incurs accidental damage.Check connections and speaker wires. ... Check outlets, power cable, and fuse. ... Check system and menu settings. ... Verify connections, turn on the subwoofer, and set the volume.

Can a subwoofer be repaired?

Can you fix a blown subwoofer? Yes, you can fix a blown subwoofer especially when it is partially blown sub damaged cone. However, a damaged voice coil will be difficult to replace. Depending on the extent of the problem, the best solution is to purchase a new subwoofer.

What would cause a subwoofer to stop working?

Short Circuit The most common cause of speaker failure is short-circuiting. A short circuit in the wires providing the signal will prevent the signal from ever reaching the subwoofer. A short circuit at the terminals on the subwoofer will also prevent electrical current and signal from reaching the subwoofer.

Is it worth repairing a subwoofer?

A: The short answer to your question is no, the repair is likely not worth it. The price/performance ratio of subwoofers has improved considerably in the last decade, so finding a subwoofer that matches or beats the AS 20's specifications—8" driver, 60 watts RMS, 33 Hz to 140 Hz frequency response—is not too tough.

How can you tell if a sub is blown?

0:142:46Car Audio : How to Tell if a Car Subwoofer Is Blown - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo that you make sure that you're not off access when you're pushing it up and down. And you want toMoreSo that you make sure that you're not off access when you're pushing it up and down. And you want to notice if you hear any scratching noises or. If it won't move.

Why does my subwoofer smell like it's burning?

It's normal from a new subwoofer to have a slight burning smell when you first turn it on. This is because the glue needs time to burn off though so this should go away in a few days or so if you've been using it for a while.

How do you test a powered subwoofer?

0:462:49How To Test A Subwoofer To See If It Works A Quick Test - YouTubeYouTubeStart of suggested clipEnd of suggested clipRight here so that is a quick test if you do not have your tuner hooked up for your radio. Just plugMoreRight here so that is a quick test if you do not have your tuner hooked up for your radio. Just plug in your cables. To the back of the subwoofer.

Why does my sub have power but no sound?

Due to heavy vibrations and overheating, the wires of the speakers can get affected. Once the speakers stop working, the subwoofer won't work as everything is connected. Therefore, thoroughly check all the wires and cables and the input ports of the speakers. Make sure they are connected correctly.

Do subwoofers have fuses?

Fuses for subwoofers can be located in-line with the subwoofer wires, within the speaker enclosure, and if there is an amp dedicated to the subwoofer, the fuse could be located there. In-line fuses can have different looks.

How long do subwoofers usually last?

around 5-14 yearsThe lifespan of a subwoofer can range from around 5-14 years. If it's properly maintained and not abused, the average person should be able to get 10+ years out of their subwoofer.

What do blown subs sound like?

if the sub makes a scratching noise when its not powered and/or its frozen (has no flex when you push the dust cap) its blown.

How much does it cost to fix a subwoofer?

Replace a speaker (woofer or subwoofer): $50 to $500.

How much does it cost to fix a blown sub?

The cost to get your blown car speakers fixed or replaced will range from about $300 to $500. If you choose to replace the whole sound system with something a little more high-end, you can expect to pay around $800 to $1,000.

What happens when a subwoofer blows?

Subwoofers are most commonly blown by supplying too much signal to the car audio amplifier. Too much signal results in a "clipping" which is when audio signals voltages reach amplifier's power supply voltages. The result is a "clipped" signal and this can damage the amplifier and subwoofer.

How do you fix a partially blown subwoofer?

1:222:46Repair Blown Subwoofer!!! (Spider Separated From Cone) - YouTubeYouTubeStart of suggested clipEnd of suggested clipOkay so once you have a sufficient amount of epoxy in there go ahead and push down on your cone likeMoreOkay so once you have a sufficient amount of epoxy in there go ahead and push down on your cone like this to get it to seat down in there real. Good.

How do you fix a blown bass speaker?

How to Fix a Blown SpeakerDetermine which speaker is causing the problem. ... Disassemble the offending speaker carefully. ... Repair a tear in the cone of the speaker. ... Check to see if the voice coil is damaged. ... Order the replacement parts. ... Once you have the replacement parts, carefully note how the damaged part is attached.More items...

What to do if your subwoofer doesn't turn on?

If the subwoofer still doesn't power on, try plugging it into a different outlet that you know works properly . As with the speaker wires, inspect the subwoofer's power cable for any damage or defects. Some subwoofers are equipped with a fuse, which may or may not require removal of a back plate.

What to do if your subwoofer is not lit?

If it's not lit, check that the subwoofer is securely plugged into a wall socket, surge protector, or power strip. If a plug's prongs slip out halfway—it's often enough to prevent the flow of power— gently bend them so the cable will stay connected after you let go.

How to check if subwoofer is working?

Check the volume level on the subwoofer and receiver or amplifier before sending any audio input. Start the volume low and gradually increase it to determine if the subwoofer is working correctly . Choose music test tracks that feature low-end bass content so there is no question one way or another.

How to make sure subwoofer doesn't receive signal?

If the input device offers speaker size settings, choose the smallest option first; sometimes setting the speaker size to something larger makes it so that the subwoofer doesn't receive a signal.

Where is the input on a subwoofer?

The inputs on the back of the subwoofer generally plug into the subwoofer output on the back of receivers or amplifiers. If the subwoofer connects to speaker outputs on the receiver or amplifier, inspect the entire length of wire connections for defects.

Do subwoofers need a fuse?

Some subwoofers are equipped with a fuse, which may or may not require removal of a back plate. If the fuse is a feature, and if you're comfortable tinkering with electronics, check to see if it needs replacing. Otherwise, consult the manufacturer or local repair shop first. Check system and menu settings.

How to fix a subwoofer that is buzzing?

Check to see if the vibration or bass level on the subwoofer settings is incredibly high. Large amounts of reverb can cause distortion to the sound and can even blow out the speaker. If you are just experiencing some distortion or static while using the subwoofer, try setting the bass level on the speaker box to a lower level until you lose the buzzing sound .

How to check if subwoofer is working?

Verify your cables are plugged in properly, and then plug the stereo system back in and turn the volume and EQ all the way down. Turn on the stereo and slowly turn up the volume and the bass EQ to see if you have found the issue. Play music with a lot of bass to verify the subwoofer is working.

Why is it important to unplug a subwoofer?

Because a subwoofer is part of an electrical mechanism it is important that you verify that your system is unplugged from the electrical outlet before you begin any disassembly of your subwoofer. You could damage your equipment if you are tinkering inside it while it is still plugged into the socket, not to mention the bigger problem of electrocuting yourself. Safety should always be your top priority.

Why is my subwoofer not responding?

If the speaker's impedance is wrong, then the subwoofer and the sound system are not properly talking to each other, causing the subwoofer to not respond. If you find the speaker's impedance is set too large, try changing it and test it to see if this resolves your subwoofer problems.

Can reverb cause distortion?

Large amounts of reverb can cause distortion to the sound and can even blow out the speaker. If you are just experiencing some distortion or static while using the subwoofer, try setting the bass level on the speaker box to a lower level until you lose the buzzing sound.

What is a subwoofer?

From Wikipedia: A subwoofer (or sub) is a woofer, or a complete loudspeaker, which is dedicated to the reproduction of low-pitched audio frequencies known as bass.

What is a passive subwoofer?

Passive subwoofers have a subwoofer driver and enclosure and they are powered by an external amplifier. Active subwoofers include a built-in amplifier. The first subwoofers were developed in the 1960s to add bass response to home stereo systems.

When did subwoofers become popular?

During the 1990s, subwoofers also became increasingly popular in home stereo systems, custom car audio installations, and in PA systems. By the 2000s, subwoofers became almost universal in sound reinforcement systems in nightclubs and concert venues.

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