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why do kicker subs keep blowing?


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standbackimapro 
Member - Posts: 43
Member spacespace
Joined: November 23, 2005
Location: United States
Posted: November 14, 2007 at 1:07 PM / IP Logged  
Well a friend of mine just bought 2 kicker subs, the the old Left side sub was blown, and the other one was fine, so he bought 2 new kicker subs, and the new Left side kicker blew also, like smoke was comming out,.. so we replaced the left one AGAIN, and now the one on the right dosnt work.. the one on the left is all distorted, what could the problem be?
haemphyst 
Platinum - Posts: 5,053
Platinum spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: January 19, 2003
Location: Michigan, Bouvet Island
Posted: November 14, 2007 at 1:41 PM / IP Logged  
Sounds to me as though you are WAY overdriving your amplifier.
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
sarcomax 
Copper - Posts: 276
Copper spacespace
Joined: November 09, 2005
Location: California, United States
Posted: November 14, 2007 at 3:58 PM / IP Logged  

With all of the info given so far, I only have one question...What is the brand and power output of the amp, how are the speakers wired, which kicker speakers, how did you set your gains, what are your gains set at?

I am anticipating the gains to be "not even turned up all the way".

coppellstereo 
Silver - Posts: 785
Silver spacespace
Joined: November 21, 2005
Location: United States
Posted: November 14, 2007 at 4:01 PM / IP Logged  
Once you answer that 'one' question. We will solve all of your problems. And it sounds as if there could be a few.
haemphyst 
Platinum - Posts: 5,053
Platinum spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: January 19, 2003
Location: Michigan, Bouvet Island
Posted: November 14, 2007 at 6:02 PM / IP Logged  
There is only ONE way to burn a voice coil, to the point that "smoke comes out", and that is to overpower it. Whether your amp is rated less than, equal to, or more than the woofers a rated to handle, you CANNOT BLOW A WOOFER UNLESS YOU ARE OVERPOWERING IT! I also expect the "my gains are only set half-way" response.
Read this thread... ALL OF IT!
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
donpisto 
Member - Posts: 49
Member spacespace
Joined: April 15, 2004
Location: United States
Posted: November 18, 2007 at 2:35 AM / IP Logged  
I'm going to assume gains were maxed out and volume was turned up too much to where the sub exceeded its mechanical limits. Ahhh, the beauty of blowing a sub :) Sucks when it happens when you're not purposely trying to blow it...other than that, they make some nice videos.
djdowdell 
Copper - Posts: 60
Copper spacespace
Joined: December 07, 2005
Location: Kentucky, United States
Posted: November 18, 2007 at 2:45 AM / IP Logged  
Do you have seperate gain controls for each channel? U can use a volt meter  connected in parallel with the speaker wire set on ac to set the gains, u just gotta convert the wattage of the speakers to volts and then match the gains( as long as they arent clipping the wave form.) Use a test tone cd when doing this set at 60hz.
Pure Noize

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