amp started blowing fuses
Aug 22, 2007 | 10:14 AM
#1
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From: Jensen Beach, FL
amp started blowing fuses
I have 2 10's powered by a 1000watt amplifier. There is a 40amp fuse on the amplifier and a 100amp fuse spliced into the power cable which sits in my engine bay. The 40 amp is the one that keeps blowing. It only happens when I run about 85-90% bass for 5+ minutes. Is this normal, or is something wrong here? I don't normally run that much bass at any given time and I'll probably turn the amplifier down a few notches anyways.
Aug 22, 2007 | 11:25 AM
#2
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From: Lucan, Ontario
What is the impedance of the subs and how do you have them wired?
What kind of amp? There's a chance your running the amp at a lower impedance then it can take and that's why your popping fuses.
And as a tip, you can tell your amp can't put out 1000 watts.
14.4V(input voltage) * 40A(fuse rating) = 576 watts
There's a little bit of variance in this but it's usually close to correct, it's a good way of telling if amp ratings are bogus or not.
What kind of amp? There's a chance your running the amp at a lower impedance then it can take and that's why your popping fuses.
And as a tip, you can tell your amp can't put out 1000 watts.
14.4V(input voltage) * 40A(fuse rating) = 576 watts
There's a little bit of variance in this but it's usually close to correct, it's a good way of telling if amp ratings are bogus or not.
Aug 22, 2007 | 01:33 PM
#3
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From: Jensen Beach, FL
Originally Posted by Cam Galbraith
What is the impedance of the subs and how do you have them wired?
What kind of amp? There's a chance your running the amp at a lower impedance then it can take and that's why your popping fuses.
And as a tip, you can tell your amp can't put out 1000 watts.
14.4V(input voltage) * 40A(fuse rating) = 576 watts
There's a little bit of variance in this but it's usually close to correct, it's a good way of telling if amp ratings are bogus or not.
What kind of amp? There's a chance your running the amp at a lower impedance then it can take and that's why your popping fuses.
And as a tip, you can tell your amp can't put out 1000 watts.
14.4V(input voltage) * 40A(fuse rating) = 576 watts
There's a little bit of variance in this but it's usually close to correct, it's a good way of telling if amp ratings are bogus or not.
Aug 22, 2007 | 01:40 PM
#4
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From: Lucan, Ontario
Impedance = ohms
I still think they might not be wired correctly. If you could find the model number of see if the impedance is on the sub, it would be a great help.
Did it just start doing this or have you had the amp in for a while?
I still think they might not be wired correctly. If you could find the model number of see if the impedance is on the sub, it would be a great help.
Did it just start doing this or have you had the amp in for a while?
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Aug 23, 2007 | 06:44 PM
#8
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From: Jensen Beach, FL
Originally Posted by Cam Galbraith
Toss that then about impedances.
Have you recently adjusted the gains, or changed some settings in your head unit?
Have you recently adjusted the gains, or changed some settings in your head unit?
This is the amp I have.
http://www.kenwoodusa.com/products/L...k3=155&pr=2719
Aug 23, 2007 | 07:11 PM
#10
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From: Jensen Beach, FL
Originally Posted by Cam Galbraith
It's most likely you clipped the amp, and blew the fuse. If it's back to where it was and s working fine, you'll be allright.
Your bass boost is off, right?
Your bass boost is off, right?