Can a voice coil be repaired?
It is sometimes possible to gain sufficient access to re-glue the voice coil. Use a slow drying or curing glue and ensure that this is placed between the coil and the cone. Apply evenly all round so that as it dries or cures it pulls evenly on the cone and keeps the coil in place in the centre.
How do I know if my voice coil is damaged?
Distortion at Normal Volumes – If even at moderate volumes you hear hiss, static, and fuzz, then you have one of two problems on your hands. You either have loose or damaged voice coils or you have a torn cone. If you turn up the volume the problem should get worse.
Do voice coils wear out?
Loudspeakers eventually wear out due to mechanical wear, particularly in the surround/suspension that connects the cone/diaphragm to the basket/housing. Environmental factors can wear out the speaker with enough time and exposure. Extended high-level audio signals can wear out electrical components.
How do voice coils burn out?
A poor contact between the connection wire + and – terminals can be at the origin of important noise, which results in a burst of amplifier distortion at high levels of electrical power.
What causes burnt voice coils?
Loudspeakers are capable of withstanding very high peak powers (or “impulses”) if the signal provided by the amplifier is clean and not distorted. Contrary to all other defects, a burned or melted voice-coil is a sure sign that the loudspeaker has been the victim of an electrical surge.
How do you clean a voice coil?
Remove the dustcap or center dome, and insert a piece of tape in between the inside of the voice coil former and the magnet pole piece. You must inch it down the former a small amount at a time and then rotate 360 degrees to try to get the loose dirt to attach to the tape. Gently remove and try again.
Why do voice coils burn out?
Underpowering the speaker. Another common reason why voice coils burn out is underpowering the speaker. If you feed the speaker with a weak signal, the speaker will clip and distort, especially when you struggle to increase the volume level. Consequently, the voice coil may burn out.
What does burnt voice coil smell like?
Burning voice coil smells like burning rubber or tire, and it is very pungent. If you smell this, your voice coil is probably burning and you will need to check it out.
What does a burnt voice coil look like?
Voice coils come in two flavors of traditional burn, fast and slow. The Fast Burn is easily characterized by a gradient in the coil. The bottom of the voice coil is black while the top may still be nice a copper color.
Why does my speaker smell like it’s burning?
Where does the burnt smell originate from? There are multiple reasons such as: excess glue burning, voice coil glue, burning electronics, voice coil heats, enhanced bass causes voice coil overheats; glue begins to burn around the speaker basket it happened with a brand new subwoofer.
What is a voice coil made out of?
The voice coil component of a speaker is actually just an electromagnet. Electromagnets are coils of wire, and they’re normally wrapped around some kind of magnetic metal, like iron.
Can you clean subwoofers?
If further cleaning is necessary to remove fingerprints or other oils, gently wipe with a slightly damp microfiber cloth. To dampen the cloth, use water or a mild ammonia-free cleaner. Never use cleaners which contain ammonia, alcohol, bleach or abrasives.
Why are my voice coils burning?
Contrary to all other defects, a burned or melted voice-coil is a sure sign that the loudspeaker has been the victim of an electrical surge.