Question about Car Amplifiers

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Why my alpine v12 amp is getting hot and melting fuses

It keeps melting the fuse on the amp

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  • bj_limpin May 08, 2009

    can anyone help me..

    im a newbie in the car audio realm and my v12 amp get relatively hot after running my system for about 30 mins or so. im not sure if my is getting hot beacuse of the speakers that are connected to it. can anybody help me pls.

    my amp is an alpine v12 f805 4 channel 3600 watts.
    connectet to its 1/2 channel are a pair of kicker 6x9 coaxials ex693, a pair of 6" kicker seprates(note sure what model, and a kicker comp sub 12". im not sure about their ohms and what not so i have trouble in checking if my amp is capable of pushing those speakers so im going out of my mind beibg paranoid on why my amp is getting almost to hot to touch.

    this is the only problem i got right now. not shut down of system has occured yet.

    an aditional question.. does it really smell diffrent after running the system? i mean, it dosent smell like its burnt or anything, i here is just a difrent smell in the car unlike when i did not have the system, is that normal? help please to ease my mind. thank u and God Bless

  • bj_limpin May 08, 2009

    correction for amp connections..

    connected to the amp's channel 1/2 are the pair 6x9 coaxials and the pair 6" seps.. bridged to the 3/4 channel is the 12" subs. gains 12 o' clock.



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You may have to big of a load. The speakers may be to low in ohms and the amp cant push speakers that low or there is a short in the wire going to the speakers

Posted on Apr 09, 2009

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It might have a short in the amp, or you could be trying to push to much voltage through it and it all depends on what size speakers you are trying to connect to it

Posted on Nov 18, 2008

  • steven plencner Nov 18, 2008

    or it could be to small of fuzes for that amp


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1 Answer

Amplifier displays "CUR"

Hello anwbrown,

The "CUR" display means that the amp is drawing excessive current and the protection circuit is activating. Too low impedance or shorted speakers will cause the amp to draw excessive current.

The Alpine V12 is a Class D mono amp with only one set of speaker outputs. All versions, M301, M501, and M1001 are only stable to 2ohms. Assuming that all 6 of your connected subwoofers and speakers are 4ohm and they're all connected in parallel, the amp sees a .67 ohm load, far below it's rated impedance.

When brand new, the amp could probably operate at low to moderate volume levels without drawing excessive current. But as electronic components age, their tolerances change and they become less able to withstand excessive current or mismatched impedances.

I'd get a 4-channel amp and drive the 4" speakers off the front channels and the 6X9's off the rear channels. And just power the subs off the V12 making sure that they are connected to show a minimum load of 2ohms.

Hope this helps.

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Hello creelb22,

Fuses usually blow because of a short of too much current.

Test your wiring (including the speaker wires) and make sure they are not shorting or grounding against the vehicle chassis. Also make sure that the speaker voice coils are not shorted.

Hope this helps.

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