did my amp die?

[srb 10+ year member]

Ok so here's the story, i'm driving along and everything is fine in my car, its just a very hot day in central Florida (like 100 degrees). all of a sudden for no reason i have no bass! so when i get home i look at my fuse on my wires connected to my battery and its blown. so i drive down to ace hard ware and buy some new ones and the first two blow before there even in. the next one i disconnect the negative battery terminal, put the fuse in, but as soon as i reconnect the battery terminal, the fuse blows. by this time i go look at my equipment and my amp is smoking. not much, but its still smoking. i prayed it was my subs not my amp, so i tried hooking it up to a different sub and the fuse still blew, but when i put a different amp in there it worked. finally, i took the back plate off my amp to look at the guts, but there was no sign of damage.

so what do you guys think? the amp was fine and then out of no where died, so was it the heat that got it?

thanks for your help and im sorry for the long post.

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[jco1385 5,000+ posts]

magic smoke from amp = bad newz

 

[bubbagumper6 5,000+ posts]

Generally when the magic smoke comes out, "she's a no work"

 

[srb 10+ year member]

****... do you guys have any idea what did it to her so i can prevent it next time?

 

[Phoenix Risen 10+ year member]

POOF there it went.

it sounds like the power and ground inputs shorted on the inside. since it was just blowing fuses.

 

[jco1385 5,000+ posts]

pic of amp guts? nothing charred or burnt?

 

[GAMEOVERCCA 10+ year member]

100*+ and its probably overheating really bad, driving around bump and something blew.. try a better amp, and make some kinda cooling for your amp, i have rear ac in my SUV and i blows under rear seats and up onto amps.. works great =)

 

[srb 10+ year member]

pics of amp guts.

nothing looks burnt to me.

 

[GAMEOVERCCA 10+ year member]

somethings most likely meted together were you can see and is causing the failure. you got pm

 

[Mitch86 5,000+ posts]

Basically the same thing happened to me today! //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif Was reinstalling my amp after getting a new sub... blew my inline fuse twice... Got a bigger fuse and poof. Smoke rolling //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif Have no idea why because everything was the same exact way as it was when it was installed previously.

 

[JEFFakaMAX 10+ year member]

No one sees the cooked area on the bottom of pic 3 between the output transistors and the transformer?

 

[bubbagumper6 5,000+ posts]

No one sees the cooked area on the bottom of pic 3 between the output transistors and the transformer?

ding, ding, ding

 

[SPLaudio 5,000+ posts]

i did //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

thats from a mosfet blowing...

 

[Spooney 10+ year member]

If the fuses are blowing instantly without the amp even being on you definitely have shorted power supply mosfets. Somebody made the comment that there must be a short between power and ground and they are partially right. When the power supply mosfets short it basically is connecting the power and ground leads of the amp together. Usually the power supply blows out after a failure in the output section. When the output fets short the amp will start to draw current like crazy. Sometimes the fuse pops before the power supply goes and sometimes it just happens so fast that the fuse can't react fast enough to save the power supply fets. Occasionally the power supply goes on its own but not often. I can't see your pics so I don't know for sure what is visually damaged but there is sure to be a few parts that look just fine that are shorted/blown.