Magic Smoke?

[Flipx99 5,000+ posts]

If the amp is drawing less current than the length of 4awg is rated for, absolutely nothing at all.

So is it a problem or not. I have an extra battery and some 8 ga wire I can test out of the car with. I don't have a remote wire however. Could I use the + of the battery for the + input and the remote. What could I use out of the car as a ground?

 

[60ndown 10+ year member]

my bad, i just re read what you wrote, the ground is bigger should be ok?

 

[skadude016 5,000+ posts]

It's the 2 channel. The MD3D is just fine.

but its still under warranty right?

 

[JimJ 5,000+ posts]

The amount of current a wire can safely pass without dropping voltage too much or heating up is based on not only the cross-sectional area, but also its length.

That's why the NEC specifies wire lengths in their current tables //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[60ndown 10+ year member]

how did you attach the 0 guage to the amp? thats gotta be a big connector, maybe it touched the positive?

 

[Flipx99 5,000+ posts]

how did you attach the 0 guage to the amp? thats gotta be a big connector, maybe it touched the positive?

I am thinking that the 0 ga somehow arced to the positive. I didn't see and my ex gf who was over is an idiot and said she saw a spark near the terminals. The thing is, I don't see any black on the terminals, inside the terminals, etc. The smoke seemed to be coming from under the amp. (the guts are mounted face down)

 

[Flipx99 5,000+ posts]

The amount of current a wire can safely pass without dropping voltage too much or heating up is based on not only the cross-sectional area, but also its length.
That's why the NEC specifies wire lengths in their current tables //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

It worked just fine when both were 4 ga. I built an amp rack and the wire was too short. I had some excess 0ga and used that. The terminals are rated from 8ga - 0 ga.

 

[skadude016 5,000+ posts]

hey jus a //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif my MD2 did the same thing as what yours is doing now. I shorted the amp out by way of the speaker wires touching the amp. It went into protect like yours. then when i turned the car off and then back on my fuse popped(the one from the batt). the power supply was blown and i had to send it in to US Amps for repair

 

[matrxx dude 5,000+ posts]

look in the amp where the positive comes in,there should be a black diode between the psitive and ground,i bet that diode is shot,when it blows it creates a dead short,ive fixed amps before that have done this,its kinda like a protection diode.

 

[Flipx99 5,000+ posts]

hey jus a //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif my MD2 did the same thing as what yours is doing now. I shorted the amp out by way of the speaker wires touching the amp. It went into protect like yours. then when i turned the car off and then back on my fuse popped(the one from the batt). the power supply was blown and i had to send it in to US Amps for repair

The fuses that popped for me are on the amp. How much is the repair?

 

[skadude016 5,000+ posts]

The fuses that popped for me are on the amp. How much is the repair?

free except shipping there. warranty ftw.

but if you dont have a warranty, and it is jus that diode you should be able to fix it yourself.

 

[Flipx99 5,000+ posts]

look in the amp where the positive comes in,there should be a black diode between the psitive and ground,i bet that diode is shot,when it blows it creates a dead short,ive fixed amps before that have done this,its kinda like a protection diode.

I don't really see anything like that. Pics should be uploaded soon.

 

[Flipx99 5,000+ posts]

free except shipping there. warranty ftw.
but if you dont have a warranty, and it is jus that diode you should be able to fix it yourself.

I bought it from flakko in July. I hope this is a warrenty issue. I really hope that nothing is broke. I am just afraid to retest it.

 

[Flipx99 5,000+ posts]

 

[Flipx99 5,000+ posts]

Is the negative of a battery the same as a ground? If not, what lying around the house considered a ground? I want something where I can look at it.