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  1. #1
    w0lv3121n3's Avatar
    w0lv3121n3 is offline Senior VIP Member

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    amp help

    I just purchased an alpine mrx-v70 5 channel amp
    its wired with a 4awg power cable with 60 amp fuse and 4awg ground as well
    I have an alpine cda-9886 headunit with alpine front speakers and polk rear speakers
    i have all 4 channels and subwoofer connected to the amp.
    it plays perfectly fine and low volumes but once i start turning it up the signal seems to cut out.
    the amp is still on, looks perfectly fine.
    once i shut the headunit off and start it again, the sound will come back out, until i turn it up loud again
    any ideas whats going on?

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    keep_hope_alive's Avatar
    keep_hope_alive is offline Acoustics Engineer keep_hope_alive is a Supporting Member of the forum!

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    Re: amp help

    likely the speaker wires on the head unit are shorting out. turn off the internal amp and properly cap the speaker wires (individually)

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