Power fuse connected to battery blows

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No Remorse

Member - Posts: 4

Joined: November 24, 2003

Location: United States

Posted: November 24, 2003 at 5:00 PM / IP Logged

I have a 1200 Watt Amp and every time I turn up the volume to my stereo the fuse that runs power+12v to my amp blows out.Does anyone know what it could be .........I have replaced about 10 fuses and still am lost. This really sucks I have no music to listen to!

Thanks.

bberman1

Gold - Posts: 2,314

Joined: March 11, 2002

Location: United States

Posted: November 24, 2003 at 5:09 PM / IP Logged

What size fuse are you using? Also what amp do you have? And do you know how your speakers are wired to the amp?

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Member - Posts: 4

Joined: November 24, 2003

Location: United States

Posted: November 24, 2003 at 5:20 PM / IP Logged

The amp is a performance tecnique1200 with a size25 fuseconnected to the power.The fuse on my amp is not blowing but the power one is. I have my speakers bridged to the amp and they are two 10inch sony explodes.

bfog99

Copper - Posts: 212

Joined: June 04, 2003

Location: United States

Posted: November 24, 2003 at 5:21 PM / IP Logged

My brother-in-law had this same problem. He ended up having a short in his power wire. It ended up melting and smoking.

bberman1

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Location: United States

Posted: November 24, 2003 at 5:29 PM / IP Logged

If that amp put out 1200 watts rms you would draw about 93 amps of current which would defiantly blow a 25 amp fuse. However I don’t think your amp is putting out a true 1200 watts, so what I would do is add up the fuse ratings on the amp, and match that to the fuse on the + 12 volt at the battery. So if your amp has 2 X 30 amp fuses use a 60 amp fuse at the battery. Also what size cable are you using for your power and ground (just want to make sure they are the correct size)?

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Member - Posts: 4

Joined: November 24, 2003

Location: United States

Posted: November 24, 2003 at 5:51 PM / IP Logged

Thanks For The advice. So since my amp uses a 60 amp fuse I would use a 60size fuse for the one connected to my battery?The size wire Im using for the ground I think is 8 gauge or 6.

bberman1

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Location: United States

Posted: November 24, 2003 at 6:01 PM / IP Logged

Your amp has 2X30? Or are you using my example? But if your amp dose have a 60 amp fuse then yes use the 60 at the battery. Also from a 60 amp fuse, the power ratings are about 768 total watts rms 384 rms per sub. As far as the 8 gauge wire that is sufficient.

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Member - Posts: 4

Joined: November 24, 2003

Location: United States

Posted: November 25, 2003 at 2:57 PM / IP Logged

bberman1 wrote:

Power fuse connected to battery blows -- posted image. Thanks I bought a 60 fuse and now I can actually turn my subs up now.

Greatly Appreciated.

bberman1

Gold - Posts: 2,314

Joined: March 11, 2002

Location: United States

Posted: November 25, 2003 at 3:01 PM / IP Logged

Glad to hear !

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Power fuse connected to battery blows

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