A subwoofer punctuates the highs and mids in a home theater system. With damaged or blown subwoofers, your content will not sound the same. Before you panic about the lack of bass sound, our team will assist in identifying the problem and how to repair a damaged subwoofer.
Causes of a Blown Subwoofer
There are many reasons causing subwoofers to blow. In this section, our experts will address the problems we commonly see.
One of the most frequently seen causes of a subwoofer that’s blown is excessive power. Our team stresses the difference between the peak power rating in a subwoofer and the RMS. If you increase the volume past a certain extent for a long period, you will end up with a blown speaker or subwoofer.
The RMS wattage is the safe rating at which you can play your content for longer. The peak power or max power is the amount of power your sub can handle in short bursts and it’s not advisable to play the subwoofer at this level for too long.
A distorted signal may also cause your subwoofer to blow. A distorted signal means unclear sound, wherein we tend to turn up the volume to get a better idea of what’s wrong. However, it will only make matters worse and can only exacerbate the damage.
Signs of a Blown Subwoofer
How do you tell whether a subwoofer is blown or just an amplifier problem? There are a few ways to test and know whether your sub is fully or partially blown.
The first step is by listening to the audio. The initial sign of blown speakers or subwoofers is distorted sounds. The poor sound presents itself as crackles and pops.
If you experience no sound from it, it is completely damagd and requires you for a replacement. However, if you can hear partial audio, then it means a partially blown speaker.
You can also physically inspect the damage. You can test this theory by gaining access to the speaker cone. You have to remove the cover or grill and take a look inside. The speaker cone is a very fragile part around the sub and you want to make sure there are no signs of wear and tear.
When testing the cone, you should be delicate without putting too much force. If the cone does not move, then the damage is severe. If you have moved around, then the suspension system has already sustained some damage. The worst is if you hear any type of a scratching sound. In this case, then you need to remove the sub from the rest of the setup to prevent further deterioration.
Next, you can measure the voltage with a multimeter. A multimeter is a device used to measure the voltage, the current and the resistance in speakers. If the multimeter shows no resistance, then it is a big indicator of a damaged voice coil wires.
The voice coil produces the force behind your subwoofer. Once you have a blown coil, you need to replace the whole subwoofer. Fixing the voice coils may be a potentially difficult process, it is better to buy a new sub instead.
Can a Blown Subwoofer Be Fixed?
Fixing a sub that’s blown still depends on the extent of the damage. If you are looking at a new one and you are still in the return period, exchanging the faulty item with another one is your best bet.
Sometimes buying speakers is the smartest move as it won’t be a hassle than fixing the it. Thus, our team suggests disconnecting the faulty sub from the rest of your home theater to avoid damaging other connected devices.
Solutions to a Blown Subwoofer
If you want to repair the damage, then we have a few solutions you can try. After removing the sub from the devices that surround it, check if your system is still under a warranty period [1]. You may contact customer service and have the device be sent back or be replaced.
If the impairment appears to be too severe, replacing it will be your best option. If you are looking at a sub for your car, the prices are quite reasonable and shouldn’t set you back too much. Our team does suggest replacing it rather than forgoing it, especially if you like to play music at loud volume in your car.
There are also affordable options for your home. Replacing it would be the first step to enjoying the bass you once love. Unfortunately, there is not much to be done if the result of your test is a fully blown sub.
How to Avoid this Problem
If your subwoofer is blown, paying more attention to the peak power and RMS rating of your speaker is crucial. You can minimize the risk of potentially having a damaged sub with your new speaker if you pay attention to the RMS rating. You don’t have to play it at a much low volume and can stay within the limits.
Proper speaker maintenance is also important. You need to keep them clean and get a cover if the speakers are not in use. The amp compatibility is another aspect that can cause signal distortion. Audio distortion is also referred to as clipping. Clipping audio is the result of an overpowered amp.
Whether it’s in your car or at home, to ensure the quality of the music and bass sounds, the power rating of the amp is very important.
FAQ
What happens when a subwoofer blows?
Two things can happen when a subwoofer blows. You are either left with no audio or play with a partially distorted sound. The former is an indicator of a fully blown sub and the latter is a sub that has only sustained partial damage.
Can you fix a blown subwoofer?
Yes, you can fix a blown subwoofer especially when it is a 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 sub.
How tell if subwoofer is blown?
You can tell if a subwoofer is blown when there is a sound issue. If you suspect your sub or speaker is blown, you can inspect the cone, or measure the voltage using a multimeter. The cone is fragile, so only use minimal force when you check the movement.
Conclusion
A blown subwoofer can still be fixed and repaired. First, identify the extent of the damage and then decide if you want to purchase a new set or to try and fix it. Most of the time, replacing your broken one with a new unit is the better option.
Another way to improve a faulty subwoofer is refoaming your whole speakers. Read our practical tips on how to refoam speakers here.
The post What Causes a Blown Subwoofer? — Discover the Root Cause and How to Fix it appeared first on The Product Analyst.
from The Product Analyst https://theproductanalyst.com/blown-subwoofer/
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