What may be causing this crackling noise?
Typically, a speaker’s crackling sound is caused by connection issues.
The two most common causes of poor speaker connection are:
Frayed speaker cables
This occurs in the majority of older automotive audio system setups where the cables are damaged.
Most typically, damaged connectors are found at the speaker because they become loose when speaker cables are moved. For instance, speakers put in the rear decks are particularly susceptible to this.
The harness is typically in good condition on the radio side unless it is tightly packed in the dashboard.
When the wires and connectors have been inspected and found to be in good condition, the voice coil is the other reason of the crackling sound.
The voice coil is built into the magnet.
There is a small gap between the voice coil and the magnet, and if the voice coil is off-center, it may make contact with the magnet, causing a crackling sound.
When this contact occurs, a shortcut is produced. This is a valid reason for the speaker to crackle, despite the short duration of shortcuts.
What might cause a voice coil to become misaligned?
- The speaker may have been manufactured with the defect.
- The cone or suspension of the speaker was repaired and reassembled with the voice coil improperly positioned against the magnet.
- If you replaced the voice coil and put the replacement incorrectly.
In addition, the cracking sound may be caused by a speaker that has been connected to a malfunctioning amplifier or pre-outs that have been destroyed.
Typically, if the amplifier is broken, the speakers will not play, although this is not always the case.
Moreover, if the problem is the pre-outs, you will need to repair or replace the amplifier, depending on the extent of the damage.
How may sound that crackles harm the car’s speakers?
If the speaker emits a crackling sound, it may have already failed. If not, it could result in an interrupted current that overstrains the voice coil and finally damages a mechanical or electrical component of the speaker.
- Mechanical failures are associated with fractured or cracked cones whose irregular voice coil movements are the result of overstretching.
- In contrast, the electrical damage is caused by a damaged or blown voice coil.
If you notice a cracking sound coming from your speakers, you should refrain from using them until the problem is resolved. Otherwise, you will endanger the speaker and other components of the automobile audio system.
How do you repair automobile speakers that crackle?
After identifying the source of the issue, you must proceed to discover a remedy.
Repair the amplifier or radio’s connection to the speakers.
Fixing the wire connections between the amplifier and the speaker, if they are the source of the noise, is the first step in eliminating the crackling sound from car speakers.
The wire may have been moved frequently by a child or animal in the past.
Turn off the system and detach the speaker wires from the amplifiers in order to test this.
Now, try starting the vehicle.
If the noise persists, it is possible that it is being transmitted through the wires.
Employ high-pass filters on all of your speakers
Set filters that will reduce excessive bass from the door speakers in order to prevent distortion.
However, many car speakers are not designed for powerful bass. Therefore, pushing these speakers to produce low frequencies can cause damage.
If you want bass from your speakers, the approach is to build a subwoofer and isolate frequencies above 80 Hz for the door speakers.
Lower the bass when the volume is loud and raise it when it is low.
When playing loud music, if the bass exceeds the speaker’s capacity, distortion will be audible.
Therefore, you should properly tune the bass and treble on the head unit. This decreases the likelihood of hearing crackling sounds.
Avoid bass-heavy music
Unless you are competing, excessive bass will degrade the audio quality.
Extra bass strains speakers and any volume level, regardless of the quality of the speakers.
In addition, playing extremely loud bass over an extended period of time will permanently harm your speakers.
Therefore, bass-heavy music or audio should be avoided.
Examine the alternator and battery
If you have attempted to repair the wire connection but the noise persists, the problem may be with the car’s electrical system.
In such a case, you will be necessary to recharge the vehicle’s battery.
If the noise persists, have a repair examine the alternator and battery.
Moreover, if your vehicle is old and has not been started for a while, the ignition is likely the source of the crackling sounds.
How do you determine if the crackles emanate from the ignition? Listen for a tickling sound whose speed varies with acceleration.
If the noise level is excessive, it may be due to improper grounding of the vehicle’s ignition system. Inadequate grounding transmits ticks to additional components, such as the air conditioner, hood, and exhaust system.
Try grounding the underwood components to see if this eliminates the noises.
Install a noise filter
If the problem is associated with engine noise, the speakers will emit whining or clicking sounds.
In addition, if the noise occurs only when the engine is running and its pitch varies with the engine’s RPM, the problem is likely the alternator.
This pitch is often distinct from the engine speed.
Consequently, installing a noise filter can occasionally eliminate this type of noise.
In addition, you have the option of isolating the automobile amplifier from the chassis by placing it on the dashboard or by utilizing feet or rubber grommets.
If it does not resolve the issue, try utilizing alternate patch cables.
If the noise persists regardless of whether the engine is running or off, you must investigate alternative noise sources.
In addition, adding soundproofing materials in the vehicle can aid in the elimination of this noise.
One of the best accomplishments that will alter your driving experience is listening to fantastic music in your automobile.
However, individuals may make minor errors that result in high or low frequency speaker distortion. Others may install intricate and costly sound systems, but they will not receive a clear output.
In addition, the issue may arise from the automobile itself or the configuration of the automobile’s system.
Therefore, the aforementioned instructions should assist you in repairing the cracking sound and minimizing its recurrence.