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    blowing fuses

    ok i have 8 gauge power and ground wiring for my JBL 1200.1 and when i had the amp turned up i blew my fuse in like 10 minutes, then i put in another one and turned it to about 3/4 and blew again in like 15....now i got it at half and seems to be fine...but i want to buy new wiring. Would I have a problem blowing fuses with 4 gauge with the amp turned up??



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    you should get 4 gauge cables and you will be ok



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    8Awg wire is way to small for a JBL1200.1, that's a lot of power...
    it's like trying to **** a golf ball thru a straw



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    what size fuse are you running?

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    i believe it says 60A.....the guy at my local shop said that should be fine if i had the right size wire. I'm going to go pick up my 4 gauge wire today and have a LONG day of installing it. I need to get my ground wire 4 gauge too, correct??? Is 60A fuses good for 4 gauge wiring?



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    Originally posted by Bumpin03
    i believe it says 60A.....the guy at my local shop said that should be fine if i had the right size wire. I'm going to go pick up my 4 gauge wire today and have a LONG day of installing it. I need to get my ground wire 4 gauge too, correct??? Is 60A fuses good for 4 gauge wiring?
    They are supposed to be 40A. and there are 3 of them...you really need that 4 gauge wire!!!



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    im talking about the fuse on the battery wire is blowing....not the ones on the amp. The ones on the amp say 40A and there are 3 of them.



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    so if i go with 4 gauge wiring...would it be safe to turn my amps gain all the way up without blowing fuses??? I need to install it today...im dying here having my amp at half power!!!! even though it is twice as loud as my last system even at half power.



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    Originally posted by Bumpin03
    so if i go with 4 gauge wiring...would it be safe to turn my amps gain all the way up without blowing fuses??? I need to install it today...im dying here having my amp at half power!!!! even though it is twice as loud as my last system even at half power.
    4 gauge will cause more than the wanted 2% loss. 1/0 gauge would be best here.




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    "would it be safe to turn my amps gain all the way up without blowing fuses???"

    uuuh, you shouldn't have your amp gains past half....and 8 guage wire will work fine, my planet audio 1200d has inputs for 8 guage only and at the shop where i was working they had 4 12inch cirwin vega hed's running off of it with only 8 guage wire...


    GAINS ON AN AMP ARE NOT VOLUME CONTROLS, THEY ARE STRICTLY MEANT FOR MATCHING YOUR HEADUNITS OUTPUT VOLTAGE, THAT IS IT....




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    Originally posted by taylor
    "would it be safe to turn my amps gain all the way up without blowing fuses???"

    uuuh, you shouldn't have your amp gains past half....and 8 guage wire will work fine, my planet audio 1200d has inputs for 8 guage only and at the shop where i was working they had 4 12inch cirwin vega hed's running off of it with only 8 guage wire...


    GAINS ON AN AMP ARE NOT VOLUME CONTROLS, THEY ARE STRICTLY MEANT FOR MATCHING YOUR HEADUNITS OUTPUT VOLTAGE, THAT IS IT....
    the fusing on the amp is way in excess of the thermal limit of 8 gauge wire. 4 gauge would work but losses would be in excess. To make the losses acceptible 1/0 gauge is needed. How do you come up with 8 gauge?




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    although i suppose i am running 4 guage to a distro block, then 8 to my 1200d and 10 to my 300-4




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    4 guage will be fine, you definetly don't need bigger than 4 for 1 1200.1, any bigger would be a waste of money. unless you plan to upgade lots...




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    Originally posted by taylor
    4 guage will be fine, you definetly don't need bigger than 4 for 1 1200.1, any bigger would be a waste of money. unless you plan to upgade lots...
    In what way do you calculate losses in a wire? what method do you use to tell you when to upgrade? Do you wait untill you at the thermal limit if the wire? If so that isn't a good way as you would already have heavy voltage losses.




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    because thats just plain overkill for 1 1200.1...why 1 guage, i doubt the wire would even get warm with 4....and the loss would be so minimal that it wouldn't even noticeable...it would be like me using 8gauge for my 4 channel amp instead of 10guage....Could you notice a difference???not bloody likely....It's like guys who pay 10.00 a foot for IXOS speaker wire claiming that the signal loss from the no name wire of the same guage will be audible...what kind of s h i t are these guys smoking...




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