[CRX_2NV]

Hey guys, my amp keeps blowing fuses and I can't find the short. With only the basic setup of 12V and Ground, it'll blow a fuse. Checked the volts between 12V and Ground and there is 12 somethin, without a remote wire connected, checked the volts between remote terminal and ground, and it says 12 somethin. Checked resistance between all and there are no connections between them. Would that mean somethin internal in the amp?

 

[bobski]

Probably. Completely disconnect the amp and check the resistance between it's negative and positive terminals. If you get a really low number, that's your problem.

 

[ZeniceguyCRX]

what size power wire are u using?
when the power drops(voltage) the current raises and lows fueses, are u running a capaciter?

 

[bobski]

when the power drops(voltage) the current raises and lows fueses

Ohm's Law states: Voltage = Current * Resistance
Or written differently: Voltage / Resistance = Current

Run some numbers through the equation:

14 Volts / 4 Ohms = 3.5 Amps

12 Volts / 4 Ohms = 3 Amps

10 Volts / 4 Ohms = 2.5 Amps

8 Volts / 4 Ohms = 2 Amps

And you see that for a given load (resistance), decreasing the voltage results in an decrease in amperage. Conversely, increasing the voltage results in a increase in amperage.

 

[Ragnaarok]

sounds to me like a bad amp. return it / warranty it.

 

[ZeniceguyCRX]

not as in ohms law, In stereo systems your amp trise to run using a certain amount of power. when the voltage drops it isnt getting enuff power anymore so it starts to suck up more current to supply the amp. when my system drops below 10v on low base with the amps turned up I pop my 200amp cercuit braker

 

[weston]

Are you blowing the in-line fuse in your wire? Or the fuses in your amp?