Amp or Subs poured smoke!

[akheathen Premium Member]

well, if the subs were slowly pumping up and down, it sounds like the rail voltage was trying to operate, but coming to a fail, imho. i bet one side of the outputs is fried. you can have that fixed. pop open the amp and see...... you will definately see if it opured that much smoke. did you happen to smell the subs before-hand? tell us exactly how you had them wired up for starters. if you meant, you wired each to 2ohm, then paralleled to the amp, that is only .66ohm. take a reading of the array, then each sub, then each coil, and inspect closely. look for arcing tinsels ir touching wire strands. i can pretty much gaurantee it is either one, or more of the subs, or operator error

 

[Pataforce8 10+ year member]

Umm pretty sure this is correct

I agree you don't wanna go to one ohm, but I disagree on not wiring your subs similarly. True, you could get almost any load you want, but it's impossible to get 2ohms with a symmetrical wiring setup.

 

[Heeltoeclutch 10+ year member]

u take 2 8 ohm loads and wire them parallell you get 4. you take a third 8 ohm load and wire it parallell to the others.......you get 2 ohms.
Umm pretty sure this is correct

Dude- how do you get 2 from 8/3?

So, three 8-ohm loads in parallel:

(1/8+1/8+1/8)^-1

Or, as you're saying, 4 ohm and 8 ohm in parallel

(1/4+1/8)^-1

= (3/8)^-1

= 8/3

= 2.6666666666666666666666666666667

according to windows calculator thingy.

 

[Heeltoeclutch 10+ year member]

then whats the rule of thumb when dealing with ohm loads' date=' do 2 4 ohm loads not wire up to 2 ohms parallel anymore?[/quote']
When dealing with resistance:

In series it is R1 + R2 + R3 = Total R

so three 8-ohm loads would be 24 ohms.

In parallel, it is (1/R1 + 1/R2 + 1/R3)^-1

so three 8-ohm loads would be 2.66666666666666666667-ish

//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[Haunz 10+ year member]

The OP did not say whether his subs were dual 2ohm, dual 4ohm, or what..... all he said was that he *thought* they were wired to 2ohms...

Until the OP can tell everyone what subs he has and how they are wired, everyone in the peanut gallery should STFU and quit speculating... //content.invisioncic.com/y282845/emoticons/furious.gif.fc81ca146dbff91fede3ed290dbc4f4c.gif

 

[Heeltoeclutch 10+ year member]

Just trying to help and share knowledgezzz.... //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

 

[audioholic 5,000+ posts]

Umm pretty sure this is correct

That is incorrect.

 

[retrojordans 10+ year member]

Dual 4 ohms - 2.6~ + rise - Maybe 5ohms - Totally safe...

Dual 2 ohms - 1.3~ + rise - Maybe 3ohms - Totally safe...

If it's this ^ the amp is trying to pull a huge load from the charging system of the vehicle, not getting adequate current will make for one rambunctious signal and probably burned the amp as well as 1 or more voice coils.

I'd lean toward serious voltage drop from a seriously power hungry amp trying it's damnedest to pull 150amps from a 90amp alt, stock starter battery, and a best buy install.

My $.02

More proof that if you want to fry up some dinner in your vehicle, run a cheap "3,000 watt" amp on stock electrical //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[4x4runner 10+ year member]

that amp i think is rated 2400 rms at 1 ohm. You are probably blowing all the amps from low voltage and bad grounding. the low voltage cause more heat and eventually burn up and smoke. for that power you need the big three in 1/0. and at least a h.o alt up front or an additional battery in the rear to have more reserve and keep the voltage more stable. Both a h.o alt and additional battery(s) would be best. just a battery in the rear will help a lot, but don't play it constantly and deplete the reserve of the battery, your alt can't keep up. Your alt will probably quit pretty soon pulling so much current , it is putting a lot more stress on your alt than it was designed for.

 

[retrojordans 10+ year member]

Oh on another note judging by your story, if the whole of the car was full of smoke within minutes/seconds it was definitely a sub(s) that burned, when a voice coil is overheated it doesn't seize up immediately first the adhesive holding the wire on the former begins to burn and smoke, the sub then acts like a big smoke pump, pumping smoke out of the port rapidly.

When amps burn they can smoke a hell of a lot but they shut down shortly thereafter if not before depending on the protection circuitry involved. But an amp probably won't fill the car with smoke like a sub(s) will.

If it was a sub don't throw the burnt subs away you can either sell the motor/basket structure or have them re-coned for reasonable prices.

 

[Haunz 10+ year member]

And the amount of fucking stupid in this thread continues...