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AGU fuse dist block question

Discussion in 'Audio & Video' started by bendbolden, Feb 2, 2011.

  1. Feb 2, 2011 at 9:46 AM
    #1
    bendbolden

    bendbolden [OP] Come and take them.

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    I just ordered a distribution block for my setup (http://www.amazon.com/Tsunami-Distribution-Block-FDB8002-AGU/dp/B00032A1P4)
    and am planning on mounting it closer to the battery. Am I correct in doing this and if so what size fuse should I use. I will be running two 100 watt amps(one to components and one to an 8" sub) using 4 gauge from the battery to the block and 8 gauge to the amps. Also do you know where I could get AGU fuses locally? Thanks
     
  2. Feb 2, 2011 at 9:54 AM
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    bendbolden

    bendbolden [OP] Come and take them.

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    what do you mean
     
  3. Feb 2, 2011 at 9:58 AM
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    TurboGT

    TurboGT Stirring the pot since...

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    My opinion - Ignore his comment, assuming he's bashing on your purchase.

    You don't want to mount that by the battery, mount it by the amps. DO run 4awg from the battery to the block, and do run at least 8awg to the amps... your goal here is the shortest run from the fuse block as possible. Don't forget to fuse the 4awg within 12-18" of the battery connection.

    As for the AGU fuses, you should be able to get them at any local stereo or auto parts store
     
  4. Feb 2, 2011 at 10:06 AM
    #4
    bendbolden

    bendbolden [OP] Come and take them.

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    Gotcha. That is what I initially thought of doing but I wasn't sure. Is it a good idea to have a fused dist. block or does it matter?
     
  5. Feb 2, 2011 at 10:15 AM
    #5
    TurboGT

    TurboGT Stirring the pot since...

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    I say yes... If I recall correctly from my days installing stereos, larger wire has less resistance built into it (we're talking almost micro-fractions of resistance here, but still) than smaller wire does, and unless you're installing in an old car where the floor carpeting was glued down (but you wouldn't be on TW if we were, right??), there's plenty of room under the doorsill plates and carpet to hide a 4awg wire.

    Dist block is good in that it allows each amp to be separately fused - that way you don't have an amp that is overfused.

    Example - you've got a 4ch amp running your speakers that should be fused with a 25a fuse and a sub amp with a 50a fuse, but you don't use the dist block - you just daisy chain the power lead. Fuses blow when they reach a certain percentage overload over a certain length of time. Say your 4 ch amp has an internal short, causing to to start drawing over 40a of current, and you've got your sub amp turned off or way down... if you only had a single fuse under the hood by the battery, your sub amp isn't drawing enough power in conjunction with the 4ch amp to blow that larger fuse, allowing the 4ch amp to slowly but surely fry itself from the inside out.

    Same situation but with the fused dist block, your 4ch amp pops the 25a fuse in the block, preventing further damage to the amp, regardless of the state of the sub amp.

    Make sense?
     
  6. Feb 2, 2011 at 10:23 AM
    #6
    bendbolden

    bendbolden [OP] Come and take them.

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    Sure does. Thanks for all the info!
     
  7. Feb 2, 2011 at 11:24 AM
    #7
    TurboGT

    TurboGT Stirring the pot since...

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    Just my .02

    There's times I do things that other's wouldn't do... and then there's times where others do things i wouldn't touch with a 10 ft pole

    (to their cars, that is)
     
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