keep blowin fuses on my amp...

[Skeeter51 10+ year member]

I installed a 1000 watt two channel kenwood amp, with two infinity reference DVC subs and it was up and going for about 10 minutes and blew the fuse. I put another one in and it did the same thing. The inline fuse on the power wire is fine just the fuse on the amp keeps blowing, any reason why it might be blowing?

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[disturbedfuel15 10+ year member]

What size fuse is in the amp and inline fuse holder?

 

[Skeeter51 10+ year member]

size 40 in the amp, and a size 80 in the inline fuse

 

[aLCHeMiST45 10+ year member]

The fuse for the power wire should never be greater than the total fuse rating of the amp. The amp is not supposed to receive more than a 40 amp current, however, your inline fuse will allow 80 amps to flow to the amp. The inline fuse is meant to protect your power wire and also your amp.

 

[Skeeter51 10+ year member]

The fuse for the power wire should never be greater than the total fuse rating of the amp. The amp is not supposed to receive more than a 40 amp current, however, your inline fuse will allow 80 amps to flow to the amp. The inline fuse is meant to protect your power wire and also your amp.

So what are you saying that I should do?

 

[disturbedfuel15 10+ year member]

Use a 40a inline fuse. Atleast that way you can tell if it is your amp that is drawing too much power, or if it is your battery feeding too much power.

 

[johnecon2001 5,000+ posts]

Something in the speaker wiring could be amiss. Check to make sure you have the subs wired to the correct ohm load. If you drop it below what the amp can handle it could blow fuses after playing for awhile.

Another posiibility is that the amp itself is bad. But lets just hope you wired it weird.

 

[johnecon2001 5,000+ posts]

The fuse for the power wire should never be greater than the total fuse rating of the amp. The amp is not supposed to receive more than a 40 amp current, however, your inline fuse will allow 80 amps to flow to the amp. The inline fuse is meant to protect your power wire and also your amp.

You are oh so wrong.

The inline fuse is to protect the wire. If you run 4awg the fuse should be anywhere from 80-150a. If you have 8awg you should run somewhere between 50-80a.

Please read up a little more on fusing wire.

 

[disturbedfuel15 10+ year member]

^^^

Hey, I learned something too. Good thing I don't post things I'm not sure about. I just pick up this shit second hand //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[aLCHeMiST45 10+ year member]

I would go with disturbedfuel15's suggestion, try using an inline 40 amp fuse. It is possible that with the 80 amp fuse on the power wire, the amp is seeing a current that is less than 80 amps but, greater than 40 amps.

 

[johnecon2001 5,000+ posts]

I would go with disturbedfuel15's suggestion, try using an inline 40 amp fuse. It is possible that with the 80 amp fuse on the power wire, the amp is seeing a current that is less than 80 amps but, greater than 40 amps.

Impossible. The amp will draw the current it needs. The 40a fuse on the amp are only drawn at peak wattage.

Go do some research before you post again, PLEASE.

 

[xluben 10+ year member]

listen to the man. inline fuse should be rated for the wire. it will save your car from an electrical fire if something shorts out.

the amp has it's own fuse to protect itself //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[45auto 10+ year member]

listen to the man. inline fuse should be rated for the wire. it will save your car from an electrical fire if something shorts out.
the amp has it's own fuse to protect itself //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Yeah, the amp will only draw what it needs...

If it's drawing too much, I'd check the impedance on it, and make sure you didn't wire wrong, otherwise, your amp might be done... Same thing happened to my old Kenwood 2 channel.

 

[Skeeter51 10+ year member]

ok i have two DVC infinity reference subwoofers. it said 2-8ohm on woofersetc.com where i bought them. I wired them at what i thought was a 2 ohm load, which is what i want. infinity didnt send me any wire diagrams so i went to crutchfields diagrams and found out how to, i hope i read them right. I hooked one positive with one negative on one voice coil, the positive and negative were right next to eachother. then i ran wires from the positive and negatives on the other sides voice coil to the terminal. from the terminal i ran both of the subs wire together, and bridged the amp. it is all is parallel, and i hope it is in a 2 ohm load. But would it matter which positive and which negatives i hooked together on the voice coils? Infinity really didnt give me any direction on that.

 

[Skeeter51 10+ year member]

ok i deffinitly have my subs wired completely wrong, i gotta connect one positive to one negative of the voice coil on the opposite side. I have no idea what i was thinking when i hooked it up.