Sub Dead?
#1
Join Date: Jul 2008
Location: Fairfeild,California
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Sub Dead?
Alright about a month ago I got a kenwood double din installed... And about a week ago my sub started acting funny.... It would hit then randomly hit then just stopped hitting all together... Im currently broke so Im not able to take it to anyone till the 15th... Anyone know whats up? The amp still works and I have audio through my speakers...
#2
Sounds like what happened to me. I had a poineer head unit that got stolen and when I replaced it with a different one my sub acted funny too. It would just sit there and hit at the most random times and when i would really crank it up it would put off a foul smell. After a month of that it finally just died all together.
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Haha dont be my was ancient though so an upgrade is in order... When I get the money....
I also got that foul smell when turned up to loud before... I belive thats the smell of your amp burning ( stand to be corrected)
But offroadin what did you do... Just replace it?
I also got that foul smell when turned up to loud before... I belive thats the smell of your amp burning ( stand to be corrected)
But offroadin what did you do... Just replace it?
#5
It was the voice coil burning I think. Cuz it was coming from inside the sub box. And I havent replaced it yet. I think the overall problem was that the Sub was only rated for 800w and I had a 500w amp hooked into it. Still doesnt make alot of sense, but when I do get around to replacing it im gonna go for 1000w+ just to be safe.
#6
It was the voice coil burning I think. Cuz it was coming from inside the sub box. And I havent replaced it yet. I think the overall problem was that the Sub was only rated for 800w and I had a 500w amp hooked into it. Still doesnt make alot of sense, but when I do get around to replacing it im gonna go for 1000w+ just to be safe.
#8
#11
sounds like you drove you amp into clipping... and it took its toll. when your amp clips it can send out much more electrical current then any of its ratings. basicly its like hooking the sub directly to the battery when the amp clips. thats no good because the coil heats up and the thin insulation on the wire burns off and causes the wire to short circuit the amp. this would cause the amps protection circuit to kick in.
replacing the headunit and not readjusting your amps gains to match is likely the cause.
replacing the headunit and not readjusting your amps gains to match is likely the cause.
#12
sounds like you drove you amp into clipping... and it took its toll. when your amp clips it can send out much more electrical current then any of its ratings. basicly its like hooking the sub directly to the battery when the amp clips. thats no good because the coil heats up and the thin insulation on the wire burns off and causes the wire to short circuit the amp. this would cause the amps protection circuit to kick in.
replacing the headunit and not readjusting your amps gains to match is likely the cause.
replacing the headunit and not readjusting your amps gains to match is likely the cause.
#13
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you want to avoid anything that sounds like distortion, which is usually the cause for any speaker to burn, which is a sign your pushing too much "noise" through the setup. "noise" is basically that, it is pure noise and not sound.
and yes, if you replace your HU, you had better reset everything to zero and adjust from there.
#14
Im going to disagree with you on this, underpowering a Sub is what kills them more often than not. its very hard to kill a sub with too strong of an amp (within reason) as the RMS is where it sits 90% of the time, and you hardly ever (unless competing) ever reach peak amp output. (this is also according to sub, enclosure and amp)
you want to avoid anything that sounds like distortion, which is usually the cause for any speaker to burn, which is a sign your pushing too much "noise" through the setup. "noise" is basically that, it is pure noise and not sound.
and yes, if you replace your HU, you had better reset everything to zero and adjust from there.
you want to avoid anything that sounds like distortion, which is usually the cause for any speaker to burn, which is a sign your pushing too much "noise" through the setup. "noise" is basically that, it is pure noise and not sound.
and yes, if you replace your HU, you had better reset everything to zero and adjust from there.
#15
#16
anybody that kills a sub by underpowering it needs to get out of car audio. i had a 15" RE SX which is rated at 1000rms but can take upto 1500 and i had it on like 750 with NO problems. so either the installer is a moron or the products he is using are garbage.
underpowering will not kill a sub
underpowering will not kill a sub
#17
anybody that kills a sub by underpowering it needs to get out of car audio. i had a 15" RE SX which is rated at 1000rms but can take upto 1500 and i had it on like 750 with NO problems. so either the installer is a moron or the products he is using are garbage.
underpowering will not kill a sub
underpowering will not kill a sub
#19
"Underpowering" a sub, causing it to blow is just a rumor that is false. People who don't know what they're talking about with car audio but try and act like they do make me laugh. The only time I could see someone think that they blew a sub due to "underpowering" would be if you took a sub with like 900w RMS and hooked it up to a 300w RMS amp and turned up the gain/bass boost all the way or something. It would clip horrible and blow the sub.
#20
"Underpowering" a sub, causing it to blow is just a rumor that is false. People who don't know what they're talking about with car audio but try and act like they do make me laugh. The only time I could see someone think that they blew a sub due to "underpowering" would be if you took a sub with like 900w RMS and hooked it up to a 300w RMS amp and turned up the gain/bass boost all the way or something. It would clip horrible and blow the sub.
#21
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"Underpowering" a sub, causing it to blow is just a rumor that is false. People who don't know what they're talking about with car audio but try and act like they do make me laugh. The only time I could see someone think that they blew a sub due to "underpowering" would be if you took a sub with like 900w RMS and hooked it up to a 300w RMS amp and turned up the gain/bass boost all the way or something. It would clip horrible and blow the sub.
but the main cause is basically your voice coils will melt due to overheating trying to compensate for not enough draw to hit the sounds your trying to get out of it.
you will blow a sub 5 times faster by not having enough juice than by having too much juice, within reason
(if your trying to power a 250 peak sub with a 1500 rms amp, guess what....)
at the same time, if your trying to power a 1500w rms sub with a 250w peak amp and get decent sound from it, your going to melt your voice coil/coils, and no, it wont take very long to accomplish this task. it could happen the first time you try to turn the volume up for more than 3-4 minutes.
and yes, Ive seen this happen.