Question about Alpine MRD-M300 Car Audio Amplifier

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E-3 comes up

I Know i have to eliminate the excessive currant but can anyone explain to me how to do so.

Posted by svjonny13 on

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Hello svjonny13,

Excessive current draw can be caused by a short in the wiring, especially the output. Also, an amp may draw excessive current when operated into a lower impedance load than it can handle.

Too low of a supply voltage may result in the amp drawing excessive current, especially when operated at or near it's rated output. Voltage multiplied by the current equals watts. So if the amp is trying to produce X number of watts, the lower the voltage, the more current it needs. A power wire that is too small or too long may have too high of a voltage drop. A high resistance in the ground connection can also result in a significant voltage drop. Again, too small, too long, loosely fastened, or perhaps corroded. I'd check all wiring

Internal component failure can also cause excessive current draw. In that case, the amp needs service.

Hope this helps.

Posted on Jun 17, 2009

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