This may be a dumb question but..

[audioholic 5,000+ posts]

My battery is located in the trunk straight from the factory. The solid audio amp was running at 4 ohms and the other was at 2 ohms. These were on the w7..

How could you run the same subwoofer at 4ohms AND 2ohms? That is impossible. Not to mention the W7 comes in non-even coil options. I think you are confused what you were and are running your sub at in terms of impedance. That would explain the blown amplifiers.

 

[shalizi 10+ year member]

i wasnt running the sub at these impendances...those are the ohms that the amps were at....i know im a dumbass when it comes to this stuff but thats why i ask you guys hoping to get some help.

 

[phyphoestilic 5,000+ posts]

uhhh u don't set the impedance on the amp. It's ur sub woofer configuration.

I have no idea what u meant by these are the ohms the amp was at.

 

[GMCJimmyslt2000 10+ year member]

i agree with audioholic...how the hell would a second battery prevent some1 from frying a amp.....0 gauge to 4 gauge to any of those amps is fine to run. Double check wiring and impedance like said b4.

 

[shalizi 10+ year member]

hahah im just as confuseddd...its time for a new amp i guess anyways so when i have the amp and the w7 what impendance should it be at?

 

[its_bacon12 10+ year member]

12w7 is 3 ohm right?

 

[haunther]

im thinking he might be shorting them out due to low current.

But then again their hot soo hummm.

Upgrade your electrical then we can talk

 

[Goindef154 5,000+ posts]

Too low of system voltage will not "fry" an amp. I really have no idea where you are getting that from. Amps with non-regulated power supplies will keep playing, while their output scales down according to input voltage. An amp with a regulated power supply will simply go into protect mode once voltage reaches the extents of its allowable voltage window, high or low.
There is no such thing as too HIGH of an impedance. Running a higher impedance, again, will not "fry" an amplifier. Running too LOW of an impedance certainly can/will however. Im starting to think you are just guessing here. Why not sit back and read, rather than type. Honestly, you dont seem to understand the topic very well yet.

so when voltage drops too low it will NEVER cook an amp? I'm honestly asking maybe I can learn something. I'm referring to battery voltage not deck voltage, just to clarify. And I said high when I meant low impedance earlier.

 

[audioholic 5,000+ posts]

so when voltage drops too low it will NEVER cook an amp? I'm honestly asking maybe I can learn something.

It shouldn't, but Im not inclined to say "never". //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif Running the voltage too high possibly could, but too low shouldn't cause any permanent damage. Like I said, it will simply reach a threshold where the amp stops operating, until system voltage is revived to an acceptable level.

 

[skadude016 5,000+ posts]

It shouldn't, but Im not inclined to say "never". //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif Running the voltage too high possibly could, but too low shouldn't cause any permanent damage. Like I said, it will simply reach a threshold where the amp stops operating, until system voltage is revived to an acceptable level.

Plenty of big amps can be cooked seeing to little voltage //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[skadude016 5,000+ posts]

so ya beemer guy. what do you set your gains at when you get the amp?

 

[Goindef154 5,000+ posts]

So I can run a 5000 watt amp on a stock elctrical system and have no problems, glad I learned something.

 

[skadude016 5,000+ posts]

So I can run a 5000 watt amp on a stock elctrical system and have no problems, glad I learned something.

ummm no.... lol

 

[theCybe 5,000+ posts]

Is the battery ten years old? Just a thought.

 

[Goindef154 5,000+ posts]

sarcasm //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif