I have two 10" subwoofers. A guy at the car audio place told me that they were blown out. The tops of them look fine. He said that the coil is blown...... Is this possible?
2007-05-20 12:35:00 · 6 answers · asked by newtrarat 2 in Cars & Transportation ➔ Car Audio
Not only is it possible, it's very common.
The power that you send into a speaker runs through the voice coil. Much (in fact, most) of that power is turned into heat. Part of a speaker's power rating is determined by how much heat it can tolerate before something in the voice coil melts.
Sometimes the voice coil gets deformed or physically breaks apart, so there's no current path through the speaker any more. Sometimes the wire insulation in the voice coil melts so that there's a dead short in the speaker, which shuts down the amplifier. In either case the speaker won't have any damage that's visible to the eye. The result is that the speaker looks fine but won't produce any sound.
2007-05-20 13:10:34 · answer #1 · answered by KaeZoo 7 · 0⤊ 0⤋
Sure it's possible. A coil is just a coil of wire and can burn in two at any spot.
There are many ways a speaker can blow.
I can drive speakers with a 100% clipped square wave signal all day long with no problems as long as the thermal and mechanical limits of the speaker are not exceeded.
I can feed a speaker 100% distortion all day long with no damage as long as the thermal and mechanical limits of the speaker are not exceeded.
I can exceed the thermal and/or mechanical limits of a speaker and watch it fail in short order.
These are electrical and physical truths and anything else is a myth.
See my site for more info http://spkrbox1.spaces.live.com
2007-05-20 12:44:41 · answer #2 · answered by Anonymous · 0⤊ 0⤋
yeah I blown 4 18" inch Acoustic Audio subs from underpowering the amp. If your voltage drops to low, your amp will have the tendacy to clip from the distortion. Thats when you here a pop noise in your subs, amp shuts off and turns back on. Not right away will you notice, but eventually they will make this annoying sound.
2007-05-20 13:03:26 · answer #3 · answered by Anonymous · 0⤊ 1⤋
yea just like a motor dying in a car with no rust....you can push on it and feel a rub and hear it also...it really sucks but rebuildable
2007-05-20 16:18:27 · answer #4 · answered by racecarreal 2 · 0⤊ 0⤋
yes it is
my boyfriend did that to one of his and they just replaced it(the coil) for him.
2007-05-20 12:43:58 · answer #5 · answered by ♥♫§weetTart§amantha♫♥ 5 · 0⤊ 0⤋
if you have a volt ohm meter you can see if the circuit open and that when mean bad
2007-05-20 12:37:30 · answer #6 · answered by bubbarub 4 · 0⤊ 0⤋