If your subwoofer has suddenly stopped working, don’t panic. There are several common causes of blown subwoofers, and most of them can be fixed with a little time and effort. In this article, you’ll learn everything you need to know about how to fix a blown subwoofer.
Image: www.youtube.com
But before we dive into the details, it is important to understand that repairing a subwoofer is not a simple process, and it may require some technical knowledge and skills. If you are not comfortable working with electrical components, it is best to seek professional help.
What is a Blown Subwoofer?
A blown subwoofer is a speaker that has been damaged due to excessive power or distortion. This can happen when the speaker is overdriven, or when it is played at too high a volume. Symptoms of a blown subwoofer include: distortion, rattling, or no sound output.
Common Causes of Blown Subwoofers
- Overpowering the speaker with too much power
- Overdriving (or ‘clipping’) the speaker with distorted audio
- Physical damage to the speaker, such as a torn cone or a broken voice coil
- Incorrect impedance matching between the subwoofer and amplifier
- Thermal damage caused by overheating
How to Fix a Blown Subwoofer
1. Inspect the Subwoofer for Physical Damage
Start by removing the subwoofer from its enclosure and carefully inspecting it for any physical damage. Look for tears, breaks, or dents in the cone or surround. Check the voice coil for any signs of damage as well.
2. Check the Impedance
You need to know the impedance of your subwoofer. Then compare the impedance of your subwoofer with the impedance of your amplifier. If they are not matched, this could be the issue.
3. Test the Subwoofer
Use a multimeter to test the subwoofer. If the subwoofer is blown, the resistance will be very low. If the subwoofer is not blown, the resistance will be within the normal range.
4. Fix the Blown Subwoofer
If the subwoofer is blown, you will need to replace the damaged components. This may include the cone, the voice coil, or the entire speaker. If you have a warranty on the subwoofer, you can contact the manufacturer to see if they will cover the repair or replacement.
Image: djtechreviews.com
Tips and Expert Advice
- Use a subwoofer that is rated for the power of your amplifier.
- Avoid overdriving the subwoofer.
- Place the subwoofer in a well-ventilated area.
- Use a surge protector to protect the subwoofer from power surges.
- If you notice any distortion or rattling, turn down the volume immediately.
How To Fix Blown Sub
FAQ
Q: Can I fix a blown subwoofer myself?
It depends on the extent of the damage. If the cone or voice coil is damaged beyond repair, then the subwoofer will need to be replaced. If the damage is not too severe, you may be able to repair it with a little time and effort.
Q: How much does it cost to repair a blown subwoofer?
The cost of repairing a blown subwoofer will vary depending on the severity of the damage, the type of subwoofer, and the labor costs in your area. A simple repair may cost as little as $50, while a more complex repair could cost upwards of $200.
Q: Can I prevent my subwoofer from blowing?
There are several things you can do to prevent your subwoofer from blowing:
- Use a subwoofer that is rated for at least as much power as your amplifier.
- Avoid overdriving the subwoofer.
- Place the subwoofer in a well-ventilated area.
- Use a surge protector to protect the subwoofer from power surges.
- If you notice any distortion or rattling, turn down the volume immediately.
