How To Repair A Powered Subwoofer?

by | Last updated on January 24, 2024

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Perform a quick test on the wires to check that they work.

Check outlets, power cable, and fuse

. Most have a “standby” LED that glows to indicate active power. If it’s not lit, check that the is securely plugged into a wall socket, surge protector, or power strip.

Is it worth repairing a subwoofer?

A: The short answer to your question is

no, the 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.

Can subwoofer be repaired?


To fix your blown subwoofer you’ll need to take it out of your car, fix or replace any damaged parts, and glue/wire it back together

. This process can range from easy to very difficult, depending on the problem.

How do you fix a subwoofer?

How do you diagnose a subwoofer problem?

Subwoofers are blown when they either receive too much power or too much of a distorted signal. You can find out if your subwoofer is blown by

listening to the sound, reviewing the movement of the woofer, and using a multimeter to find out if the coil is blown

.

How do I know my subwoofer is blown?

Do blown subs still play?

You can check if a subwoofer is blown by listening to the audio that it produces (or does not produce).

If it is blown and still producing audio, there will be a crackling or popping sound while streaming

. You can also touch the sub and check for any resistance or bounce; a blown sub will be stiff.

What happens when a subwoofer blows?

Listening to the sound

First, reduce the sound to a low volume and commence audio playback. Increase the volume and bass slowly, all the while paying extra attention to the sound. If it is distorted, you subwoofer is partially blown subwoofer and

if there is no sound at all, it is definitely completely blown

.

Will a blown speaker make any sound?


Blown speakers will make a scraping or crunching sound with any movement

. This is an indicator of a bad voice coil and it will most definitely need replacing.

How do you test a powered subwoofer?

  1. Turn off your subwoofer completely and unplug any power source.
  2. Remove all audio inputs or any cables to make your subwoofer free.
  3. Remove the subwoofer from the enclosure.
  4. Attach the positive multimeter probe to the positive terminal of voice coil of your subwoofer.

How do you fix a rattling subwoofer?

  1. Reposition the subwoofer slightly. If the subwoofer is too close to objects in a bookcase or on a shelf, it may cause them to move, creating the rattle. …
  2. Remove any objects from the top of the subwoofer enclosure. …
  3. Check the cabling connections to the subwoofer.

Why is there a hole in subwoofer?

A port, aka a ‘hole’, is designed

to reinforce the driver’s output by combining the front wave with the rear wave coming from inside the cabinet

. This is definitely more efficient especially with smaller cabinets and/or drivers.

What kind of glue do you use to repair a speaker?

Why is my subwoofer crackling?

Speaker crackling is

almost always caused by a connection problem

. Someplace between your amplifier and your speaker driver, there’s a bad wire which is causing the driver to move abruptly, causing interference.

Why is my bass not working?

How long can a subwoofer last?

The lifespan of a subwoofer can range from around

4-14 years

. If it’s properly maintained and not abused, the average person should be able to get 10+ years out of their subwoofer.

Why is there no sound from my subwoofer?


Ensure the subwoofer has not been muted

. Increase the volume level on the subwoofer. Ensure the speaker settings on the stereo system or TV have been configured properly to use the subwoofer. IMPORTANT: Certain speaker settings may disable the subwoofer.

How do I know if I blew my sub or amp?

Unhook the sub and touch the meter probes to the sub wires/terminals, if its a 4 ohm sub it would be 3.8 or something like that on a meter. Usually its a little under. If a DVC then check each coil separate.

Fuses usually blow and you get no sound

.

Why do I keep blowing subwoofers?

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.

David Martineau
Author
David Martineau
David is an interior designer and home improvement expert. With a degree in architecture, David has worked on various renovation projects and has written for several home and garden publications. David's expertise in decorating, renovation, and repair will help you create your dream home.