Recently I was driving to work this morning when I heard a loud pop from the back of my car. I wasn’t sure what it was, but I knew it wasn’t good.
When you hear a strange noise coming from your car, it always causes concern. You don’t know if it’s a problem with the engine, the brakes, or something else. But what if the problem is with your subwoofer? and How to tell if a car subwoofer is blown?
In short words, to check a blown subwoofer first, check physically for any external damage. If the subwoofer looks damaged, it is likely blown.
Another way to check is by measuring the resistance with an ohmmeter; a blown subwoofer will have infinite resistance. Finally, you can also test for a blown subwoofer by playing music through it and seeing if the sound and bass quality is distorted.
This is a simple answer, but don’t worry, I’m here to help. In this article, I’ll teach you in detail about blown subwoofer so that you can get them fixed before it becomes a bigger problem.
What Does “Blown Subwoofer” Mean?
A blown subwoofer means that it has been damaged and is no longer working properly.
The damage can be caused by several things, such as overloading the subwoofer with too much power, playing the subwoofer at too high of a volume, or even just physical damage from a bump or accident.
In addition, blown subwoofers can also be caused by a manufacturing defect. This is why it’s always important to buy from a reputable brand and to make sure that you have a warranty just in case something like this happens.
How To Tell If A Car Subwoofer Is Blown?
Here are the top 5 common ways to check if a car subwoofer is blown. By using one or more of these methods, you should be able to confirm whether or not your subwoofer is blown.
1. Check For Physical Damage
The first and most obvious way to tell if a car subwoofer is blown is by checking for physical damage. If the subwoofer has been damaged, such as by being hit or dropped, then it is likely that the subwoofer is blown.
You should also check the wires and connections to make sure that they are all secure and not damaged. If you see any bare wires or frayed insulation, then this is an indication that the subwoofer is blown.
To check the subwoofer physically, look for:
- Dents or cracks in the metal casing
- Loose or damaged wires
- Frays or bare spots in the insulation
2. Measure The Resistance With An Ohmmeter
In case you have access to an ohmmeter, then you can use this to check if the subwoofer is blown.
To do this, you’ll need to disconnect the subwoofer from the power supply and then measure the resistance across the terminals.
A healthy subwoofer will have a resistance of around 4 ohms. If the resistance is infinite, then this means that the subwoofer is blown.
3. Test The Subwoofer By Playing Music
Another way to test a car subwoofer is by playing music through it and seeing if the sound quality is distorted. If the bass sounds muted or distorted, then this is an indication that the subwoofer is blown.
4. Look For Signs Of Burning
In case you see any signs of burning on the subwoofer, such as blackened areas or melted plastic, then this is a sure sign that the subwoofer is blown.
5. Check The Subwoofer Cone
If you can see through the grill of the subwoofer, then you should be able to see the cone. In case the cone is damaged or deformed in any way, then this is an indication that the subwoofer is blown.
What Are The Reasons Why Subwoofers Blow Out?
Here are the most common reasons for car subwoofers to blow:
One of the most common reasons why car subwoofers blow out is due to overheating. When a subwoofer overheats, it can cause the voice coil to become damaged.
The voice coil is responsible for producing the sound that comes from the subwoofer. If it becomes damaged, it will not be able to produce the sound correctly.
2. Lack of Ventilation
If a subwoofer does not have adequate ventilation, it can cause the subwoofer to overheat. When a subwoofer overheats, it can damage the voice coil.
3. Excessive Use
If a subwoofer is used excessively, it can cause the subwoofer to overheat.
4. Poor Quality Product
If a subwoofer is made with poor-quality materials, it is more likely to blow out. Poor-quality materials are more likely to overheat and damage the voice coil.
5. Improper Wiring
If a subwoofer is wired improperly, it can cause the subwoofer to overheat.
6. Use of Damaged Equipment
If damaged equipment is used with a subwoofer, it can cause the subwoofer to overheat. When a subwoofer overheats, it can damage the voice coil.
7. Use of Aftermarket Parts
If aftermarket parts are used with a subwoofer, it can void the warranty and cause the subwoofer to overheat.
8. Use of Unapproved Accessories
If unapproved accessories are used with a subwoofer, it can void the warranty and cause the subwoofer to overheat.
Read Also: How To Replace A Dust-Cap On Subwoofer?
How Do I Prevent My Car Speakers From Blowing?
Here are some tips to prevent the subwoofer from blown
1. Don’t Turn Up The Volume Too High.
This is the number one reason why car subwoofers get blown. When you turn up the volume, you are putting stress on the subwoofer and eventually, it will give way.
2. Keep The Subwoofer Cool.
If you are playing your music at a high volume, make sure to give the subwoofer some time to cool down in between songs. Otherwise, the heat will build up and damage the components.
3. Use An Amplifier
Use an amplifier that is designed for car subwoofers. Using an amplifier that is not designed for car audio can cause your subwoofer to blow.
4. Use the Correct Size Fuse
Use the correct size fuse. If you use a fuse that is too small, it can cause your subwoofer to blow.
5. Use High-Quality Wire.
Use high-quality speaker wire. Cheap speaker wire can cause your subwoofer to blow. Make sure you use high-quality speaker wire that is designed for car audio systems.
6. Connect Ground Wire Properly
Make sure your ground wire is connected properly. If your ground wire is not connected correctly, it can cause your subwoofer to blow. Make sure you consult with a professional if you are unsure about the installation process.
7. Don’t Use Damaged or Frayed Speaker Wire
A damaged speaker wire can cause your subwoofer to blow. Make sure you replace any damaged or frayed speaker wire before using your car’s audio system.
8. Use An Equalizer
Use an equalizer to fine-tune the sound of your car’s audio system. An equalizer can help prevent your subwoofer from getting blown by allowing you to adjust the bass levels.
If you follow these tips, you can help prevent your car subwoofer from getting blown.
Frequently Asked Questions
Can blown Subs be fixed?
Yes, in most cases, a blown subwoofer can be fixed.
How long does a blown subwoofer take to fix?
The time it takes to fix a blown subwoofer will vary depending on the severity of the damage. In most cases, it will take a few hours to fix a blown subwoofer.
How much does it cost to fix a blown subwoofer?
The cost to fix a blown subwoofer will vary depending on the severity of the damage. In most cases, it will cost between $30 and $50 to fix a blown subwoofer.
There are many reasons why a car subwoofer can get blown and how to tell if a car subwoofer is blown?
By following the tips in this article, you can help prevent your car subwoofer from getting blown.