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  1. #1
    caseyarndt's Avatar
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    amp blows fuses right when it turns on

    the amp is an Orion extreme 400 2 channel amp
    its an older amp that I just picked up cheap

    the amp calls for two 20amp fuses, I put in 30 amp fuses and they blew right when I turned it on.
    then I tried 40 amp fuses, unhooked the speaker wires and when it turned on it got really hot in about 15 seconds(hu volume low), the fuses didn't blow but it started to stink.

    what could be wrong?



    Car: Chevy Cobalt Coupe
    Front Stage: Mids: Aura rpm 4", Midbass: Four Aura NS6's
    Rear Fill: Pioneer 6x9s
    Amps: 2 Rockford Fosgate T400-4's, and a T1500-1BDCP
    Electrical: Stock 140amp alt, Big 3, and a SHURiKEN SK-BT100
    Winter sub setup: Kicker F12a IB mounted from rear deck
    In the works: Diamond D9 12




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    Re: amp blows fuses right when it turns on

    power supply section of the amp is fux0red. not worth the money to fix either.




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    Re: amp blows fuses right when it turns on

    did you double check your wiring? are the power and ground wires mixed up?



    Quote Originally Posted by predxen View Post
    Its not as loud as it should be, you stop hearing it about a block away. you should be able to hear it a quarter mile away.
    .
    Quote Originally Posted by hispls View Post
    You need to keep the smoke INSIDE the amplifier. Once you've allowed all the happy smoke to escape the amp will stop working.
    BOYCOTT SKAR AUDIO! SHADY BUSINESS PRACTICES SHOULD NEVER BE ENCOURAGED!

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    Re: amp blows fuses right when it turns on

    Quote Originally Posted by caseyarndt View Post
    the amp is an Orion extreme 400 2 channel amp
    its an older amp that I just picked up cheap

    the amp calls for two 20amp fuses, I put in 30 amp fuses and they blew right when I turned it on.
    then I tried 40 amp fuses
    , unhooked the speaker wires and when it turned on it got really hot in about 15 seconds(hu volume low), the fuses didn't blow but it started to stink.

    what could be wrong?
    ...............nothing, nevermind




    "Bailout: Taking a trillion dollars from the people and giving it to the banks so the banks can loan it back to the people, at interest!"

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    caseyarndt's Avatar
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    Re: amp blows fuses right when it turns on

    yea I double checked all my wiring before I started upping the fuses or else I probably would have risked doing that



    Car: Chevy Cobalt Coupe
    Front Stage: Mids: Aura rpm 4", Midbass: Four Aura NS6's
    Rear Fill: Pioneer 6x9s
    Amps: 2 Rockford Fosgate T400-4's, and a T1500-1BDCP
    Electrical: Stock 140amp alt, Big 3, and a SHURiKEN SK-BT100
    Winter sub setup: Kicker F12a IB mounted from rear deck
    In the works: Diamond D9 12

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    Re: amp blows fuses right when it turns on

    then its probably what snoop said



    Quote Originally Posted by predxen View Post
    Its not as loud as it should be, you stop hearing it about a block away. you should be able to hear it a quarter mile away.
    .
    Quote Originally Posted by hispls View Post
    You need to keep the smoke INSIDE the amplifier. Once you've allowed all the happy smoke to escape the amp will stop working.
    BOYCOTT SKAR AUDIO! SHADY BUSINESS PRACTICES SHOULD NEVER BE ENCOURAGED!

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    caseyarndt's Avatar
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    Re: amp blows fuses right when it turns on

    dang I hate getting screwed over at least it was only $25 but thanks for all the responses.
    is this worth anything blown?



    Car: Chevy Cobalt Coupe
    Front Stage: Mids: Aura rpm 4", Midbass: Four Aura NS6's
    Rear Fill: Pioneer 6x9s
    Amps: 2 Rockford Fosgate T400-4's, and a T1500-1BDCP
    Electrical: Stock 140amp alt, Big 3, and a SHURiKEN SK-BT100
    Winter sub setup: Kicker F12a IB mounted from rear deck
    In the works: Diamond D9 12

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    SplAffair's Avatar
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    Re: amp blows fuses right when it turns on

    Quote Originally Posted by snoopdan View Post
    power supply section of the amp is fux0red. not worth the money to fix either.
    this



    Quote Originally Posted by predxen View Post
    Its not as loud as it should be, you stop hearing it about a block away. you should be able to hear it a quarter mile away.
    .
    Quote Originally Posted by hispls View Post
    You need to keep the smoke INSIDE the amplifier. Once you've allowed all the happy smoke to escape the amp will stop working.
    BOYCOTT SKAR AUDIO! SHADY BUSINESS PRACTICES SHOULD NEVER BE ENCOURAGED!

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    Re: amp blows fuses right when it turns on

    Quote Originally Posted by caseyarndt View Post
    dang I hate getting screwed over at least it was only $25 but thanks for all the responses.
    is this worth anything blown?
    put it on ebay as not working for parts and charge shipping according to what flat rate it will fit in, it's worth something to someone...........just no one here!




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    Re: amp blows fuses right when it turns on

    Quote Originally Posted by snoopdan View Post
    power supply section of the amp is fux0red. not worth the money to fix either.
    More likely a failure in the output section. If the power supply were bad it would be blowing fuses without the amp even turning on. The fact that the amp blows fuses at turn on is almost a dead give away that there are one or more failed output transistors.




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    Re: amp blows fuses right when it turns on

    Quote Originally Posted by Spooney View Post
    More likely a failure in the output section. If the power supply were bad it would be blowing fuses without the amp even turning on. The fact that the amp blows fuses at turn on is almost a dead give away that there are one or more failed output transistors.
    I disagree, I don't know how many amps i've seen turn on just fine and have 20+ fets smoked.




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    Re: amp blows fuses right when it turns on

    Quote Originally Posted by snoopdan View Post
    I disagree, I don't know how many amps i've seen turn on just fine and have 20+ fets smoked.
    Does it happen ?......Absolutely. Some amps have different/better protection circuits built into them than others. Some turn on and just have no output and that can be an issue in the power supply or output section .I myself have seen that happen plenty of times . I've seen amps with totally blown power supplies power up enough to light up the power LED too and even have terribly weak and distorted output . Others will pop fuses at turn on when the outputs go south. With symptoms like he is describing its a very safe bet that he has blown output transistors. His amp is trying to turn on....Power supply is more than likely ramping up ok and sending the proper rail voltage to the output section but due to a shorted output transistor(s) the output section is trying to pull every last bit of juice the power supply can(or can't ) possibly produce and nuking the fuses in the process. In this case the fuses blowing is saving his power supply from failure(well maybe not at this point seeing as he kept putting in bigger fuses until something stunk). Hell if he sends it to me I will diagnose it for us all but like was said before its really not worth fixing unless he absolutely loves this amp. I'll do an estimate for free though man if you like and i'm not even accepting amps in anymore at this point




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