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Why did my amp get crispy? pics inside


IH8PunkRok

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powerbass xa 3000d

db electrical 200 amp alt

yellowtop g34

SDC10173.jpg

SDC10174.jpg

SDC10175.jpg

SDC10176.jpg

so what made this thing go up? can anyone tell from the pics? i dont want to fix it only to have it happen again

oh and it never went into protect. even after it blew it still powered up like normal just no output

Edited by IH8PunkRok

-Matt

2005 Dodge Magnum RT
JVC KD-AVX1

2 PPI S580.2

Obsidian Audio ST1 Horn Tweeters

PRV 8MB450s

Audio Legion 3500.1D

2 RE MT 18s

360 ah LiFePO4 Battery
SHCA 2/0

155.2 @ 29 hz



Kicker CVR 15's build
DD 3512e build
Mini T-Line Build
(6) 8s Build
Nightshade 15s Wall Build
Magnum AB XFL 12s Build
Newest Magnum Build

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one of things i could think of right away was did u have a correct size fuse going to the amp?

300 amp fuse for a 3000 watt amp. seemed right to me

-Matt

2005 Dodge Magnum RT
JVC KD-AVX1

2 PPI S580.2

Obsidian Audio ST1 Horn Tweeters

PRV 8MB450s

Audio Legion 3500.1D

2 RE MT 18s

360 ah LiFePO4 Battery
SHCA 2/0

155.2 @ 29 hz



Kicker CVR 15's build
DD 3512e build
Mini T-Line Build
(6) 8s Build
Nightshade 15s Wall Build
Magnum AB XFL 12s Build
Newest Magnum Build

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Low voltage

H/U Pioneer deh80prs w/ HRT iStreamer Ipod DAC
Front stage is active, 4 Morel Elate 6.5" & 8 CDT DRT26 tweets
amp running 4mids, Mosconi Audio 300.2
amp running 8tit & alum tweets, Mosconi Audio 200.2
8 12" Ascendant Audio Chaos. amps 2 Digital Designs M4'z
box is a 4th order band pass
batts. 1 XS Power D3400 under hood,6 D3100 in back
2 XP 370 amp DC Power alts.
MLA module 15+volts
All in a 97 2door Tahoe LT

2010 West Coast Reg. 140-149.9 Bass Race Champ

Team Bass Hz

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Low voltage

why didnt it protect?

-Matt

2005 Dodge Magnum RT
JVC KD-AVX1

2 PPI S580.2

Obsidian Audio ST1 Horn Tweeters

PRV 8MB450s

Audio Legion 3500.1D

2 RE MT 18s

360 ah LiFePO4 Battery
SHCA 2/0

155.2 @ 29 hz



Kicker CVR 15's build
DD 3512e build
Mini T-Line Build
(6) 8s Build
Nightshade 15s Wall Build
Magnum AB XFL 12s Build
Newest Magnum Build

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It went up in smoke becasue:

The amp was ran at too low of an impedance.

The amp was ran hot due to clipping or some other reason, and protect circuit didnt catch it, or failed.

The amp had a lose power or ground.

The amp dipped to low on voltage.

The amp was vibrated to death, and with vertical mosfets they break easily and cause a chain reaction.

You could of blew a sub, and protect circuit didnt catch it and the woofers voice coil created a dead short on the amp.

Looking at the amp it seems like the powersupply went out, killing all the mosfets or most of them, and gate resistors.

Repair costs are ruffly $150-$225 from db-r electronics.

 

 

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low voltage and running too small of fuses for the comps... at least get a battery back there... fuck the bullship burp box rules and try to run your amp with a 20 amp fuse... that fuse popping is a sign of a strain on the entire system, the fuse, cant pass enough power to the amp and the amp suffers... II will run 300 or 200 or none

Edited by techforce
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You toasted the power supply section... Thermal runaway is a bitch. B is right about the reasons why.

A half-wit gave you a piece of his mind, and you held on to it.

My Youtube vids...enjoyDC.jpgdcsig-1.jpg2pt8a6w.png

anythings possible with the right build =] we accept visa and mastercard =]

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You toasted the output section... Thermal runaway is a bitch.

caused by excessive gain?

-Matt

2005 Dodge Magnum RT
JVC KD-AVX1

2 PPI S580.2

Obsidian Audio ST1 Horn Tweeters

PRV 8MB450s

Audio Legion 3500.1D

2 RE MT 18s

360 ah LiFePO4 Battery
SHCA 2/0

155.2 @ 29 hz



Kicker CVR 15's build
DD 3512e build
Mini T-Line Build
(6) 8s Build
Nightshade 15s Wall Build
Magnum AB XFL 12s Build
Newest Magnum Build

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