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    SnowCommando's Avatar
    SnowCommando is offline Junior Member



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    Power wire fuses?

    Picked up a Pioneer GM-D7400M Mono Amp to run my sub.

    The wiring diagram in the manual shows a fuse holder at the battery and says Fuse (40A) x2.

    Any ideas what they are specifying? Do I need to somehow run two 40A fuses or an 80A fuse? Or do they just want me to use a single 40A fuse and have a spare 40A fuse around.

    The mono amp has 2x25A fuses in it.

    I'm also running a 4 channel amp which has 2x25A fuses in it. It uses a 30A fuse in the power wire.

    I'm using 4ga wire to a fuse holder near the battery.
    4ga to a fused distribution block to 8ga into each amp.

    Any interpretations on the 40Ax2 would be appreciated.







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    blackdragonaudi's Avatar
    blackdragonaudi is offline CarAudio.com Elite



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    Re: Power wire fuses?

    There is one fuse in line right after the battery than another in the amp. OR it could be talking about 2 fuses already in the amp. Mine has 4 fuses in the amp.
    EDIT Ya I looked in the manual and I see what your are looking at its just the fuse at the battery and no you don't need 2 fuses.



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    SnowCommando's Avatar
    SnowCommando is offline Junior Member

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    Re: Power wire fuses?

    Cool. Thanks for looking. It seemed super weird to have 2 fuses at the battery. I'd rather find out now though than watch the amp detonate.

    I wonder why they say 40Ax2 then?




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    loopkiller is offline PERMA-BANED



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    Re: Power wire fuses?

    Quote Originally Posted by SnowCommando View Post
    Cool. Thanks for looking. It seemed super weird to have 2 fuses at the battery. I'd rather find out now though than watch the amp detonate.

    I wonder why they say 40Ax2 then?
    Some types of fuses are not made larger than 40A. If you use ANL style fuses, you can get them as high as 750A.




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