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Thread: Help using PSU to power car amplifier

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    Help using PSU to power car amplifier

    I have a 350 watts amplifier 13 amper at 12volts, i try to connect it to the amplifier but it shut down two second after I connect it.

    Why is this occurring? What I need to do to make it continue working and not shut down?

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    What kind of amp? And most amps use 20+ Amps of current.
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    Quote Originally Posted by Williams16 View Post
    I have a 350 watts amplifier 13 amper at 12volts, i try to connect it to the amplifier but it shut down two second after I connect it.

    Why is this occurring? What I need to do to make it continue working and not shut down?
    A PSU will NOT have enough amps to power your amp. Also, 350 watts/12 volts=30 amps. That assumed 100 percent efficiency, and it most likely is not.

    Michael
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    Maximum Bitrate psyrex's Avatar
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    Your amp probably also has an inrush current of 50A or more, causing your PSU to throw up short circuit protection, and shutting itself down. If it doesn't, you can be looking at an electrical fire!
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    Quote Originally Posted by Williams16 View Post
    I have a 350 watts amplifier 13 amper at 12volts, i try to connect it to the amplifier but it shut down two second after I connect it.

    Why is this occurring? What I need to do to make it continue working and not shut down?
    Does your amp not have a remote (RMT) point?
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    Do you recomend me to take three psu and put diodes so I can get 40 ampers to power my amplifier, but A question . If I connect the PSU this way any of the PSU´s will shut down activing its circuit protection as you said. Does a PSU recognize something taking more ampers than it could offer even if the PSU are connected with diodes and creating 40 ampers?

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    Quote Originally Posted by Williams16 View Post
    Do you recomend me to take three psu and put diodes so I can get 40 ampers to power my amplifier, but A question . If I connect the PSU this way any of the PSU´s will shut down activing its circuit protection as you said. Does a PSU recognize something taking more ampers than it could offer even if the PSU are connected with diodes and creating 40 ampers?
    WHY ARE YOU TRYING TO POWER YOUR AMP WITH A PSU?

    Power the amp from the car battery/alternator. That is what it is designed for.

    Michael
    ...I love the French language...especially to curse with...Nom de Dieu de putain de bordel de merde de saloperies de connards d'enculés de ta mère. You see, it's like wiping your *** with silk, I love it.

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    Neither darque nor pervert DarquePervert's Avatar
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    Quote Originally Posted by Wiredwrx View Post
    Power the amp from the car battery/alternator. That is what it is designed for.


    Power as little as absolutely necessary from the PC's power supply.
    Have you looked in the FAQ yet?
    How about the Wiki?



    Under normal circumstances, a signature would go here.

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    man... I hope the next thread isn't "help heating my interior with my exhaust"...

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    So, can I get sufficient power from PSU´s connected with diodes so the PSU´s will not shut down and activate its circuit protection?????

    Yes or NO ???????

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