A distorted sound is one of the common issues in subwoofers. Learn more about this problem and how to fix it.
Subwoofers are crucial in the home theater system. A surround sound consists of a center speaker, front speakers, and rear speakers. Although these speakers partakes a paramount role in recreating sounds, they can’t reproduce lower frequencies. It is why a home theater system without a subwoofer lacks depth and the audio seems all over the place.
The concept of a subwoofer is to recreate lower frequency sounds known as bass. The human hearing can only hear frequencies up to 20Hz. However, a subwoofer can pick up sounds at extremely lower octaves, from 20Hz to 200Hz. It is what makes you ‘feel’ the audio.
Usage declines subwoofer performance. It is often the cause of common subwoofer problems, such as rattling in the unit and inaccuracy of frequency response. Aside from these problems, there is one most common subwoofer issue that you will hear a lot from several homeowners: subwoofer producing distorted sound.
Distort Audio in Subwoofers
Audio distortion is a common problem in sound equipment. There are many reasons why sound equipment produces distorted sound. It could be an external problem or due to an internal issue. But generally, here are the primary reasons why speakers and subwoofers create a distorted sound.
#1 Stressed Subwoofer
The primary cause of distorted audio, whether in a speaker or subwoofer, is playing sounds at extremely high volume. The high volume stresses the speakers, resulting in mechanical failure.
Take note that the subs and speakers consist of coils, helping recreate the sound and send it to the air. These coils are quite sensitive. When the volume is maximized, the coils are overworked, which results in distortion, or worst permanent damage to the unit.
#2 Mismatched Subwoofer and Amplifier
Always check your subwoofer’s wattage rating and find out whether it matches with the amplifier. Never partner an overpowered amp to a subwoofer with a lesser power rating; this will only cause damage to the subwoofer since it receives more power from the amplifier than it could originally handle.
When this happens, the subwoofer is unable to function properly. They tend to produce distorted audio and perform poorly. Thus, before buying a subwoofer never skip checking the RMS rating of your amplifier and sub. You can check out online sources like Home Cinema Effect to read reviews and specifications of well-known subwoofers and home theater systems.
#3 Melting Coil
Constantly playing high volume on the sub causes the coils and wires to melt due to the excessive power it requires. Remember that coils and wires in audio equipment are delicate. They can easily get damaged. And if it happens, you will have to replace the damaged coil and wires with new ones. If the damage is too much, you might have to buy a new unit.
#4 Incorrect Use of Crossover
When the volume is too high and the crossover is not used properly, it may distort the sound, which may also lead to permanent damage to the unit. Incorrect wiring of subwoofer and crossover leads to inaccurate load on the speaker.