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post #1 of 70 (permalink) Old 06-10-2002, 10:22 PM Thread Starter
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Power wire gague question

Ok... I did some investigating on my Bazooka setup. The place I took it to ran 10 gague power wire. Im not crazy about that, they should have ran 8 or lower... but for a Bazooka sub... there really isnt any practical need.

Question: With this 10 gague wire ran (I think its Lightning Audio brand).... how many components can I "realistically" run off this. (Assuming the bazooka sub comes out). Can I run one amp? two? What if I run the wire to a cap... is it the same? Or can I run more?

Lemme know. Thx.
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post #2 of 70 (permalink) Old 06-10-2002, 10:49 PM
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for the bazooka its more then enough, I have a fosgate 500 amp, it puts out 710 watts, the biggest it will accept is 8 gauge. they should have ran 8 gauge in my opinion for you thats if the bazooka will accept wire that big, Im sure it does though. too large of wire for too little power draw is not good, power cap, keep the same wire gauge, and you will not need a cap for the bazooka. but if you looking at upgrading, go to 4gauge if you can, but you need to get what best suits your system. like for me 8 is as big as I can go.


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post #3 of 70 (permalink) Old 06-10-2002, 10:56 PM Thread Starter
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Ok... well can your fosgate amp be ran with 10gague wire? Cause my more important question was how many REAL amps can I run off 10 gague. I would only do this if I replace the Bazooka.
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post #4 of 70 (permalink) Old 06-10-2002, 10:59 PM
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post #5 of 70 (permalink) Old 06-10-2002, 11:18 PM Thread Starter
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Pretty good article... but I have a question:

Lets take the Fosgate 750x amp as an example. It runs 90W RMS x 4 channels. Lets do their math.

1. Find out Total RMS (answer: 360)
2. Summerize total RMS (answer: still 360)
3. Multiply total RMSx2 (answer: 720)
4. Divide total RMS by 13 (55.3)

Cable will be 3 meters.... so they are saying I need 4Gague wire to run this amp?

Is this truly the case?
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post #6 of 70 (permalink) Old 06-10-2002, 11:40 PM
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Quote:
Originally posted by DjPiLL
Pretty good article... but I have a question:

Lets take the Fosgate 750x amp as an example. It runs 90W RMS x 4 channels. Lets do their math.

1. Find out Total RMS (answer: 360)
2. Summerize total RMS (answer: still 360)
3. Multiply total RMSx2 (answer: 720)
4. Divide total RMS by 13 (55.3)

Cable will be 3 meters.... so they are saying I need 4Gague wire to run this amp?

Is this truly the case?
Ideally. But you could get away with using 8 guage.
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post #7 of 70 (permalink) Old 06-10-2002, 11:50 PM
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well on my amp, you require 8. 10 might run something like 200 watts, I would go with a 8 minimum, 4 gauge is best.
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post #8 of 70 (permalink) Old 06-11-2002, 12:47 AM Thread Starter
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Ok thats all I really needed to know. So if i ever wanted to hook up a real amp back there.... and disconnect the sub... ill just run a new 4 gague wire... and leave the 10gague one for minor crap like my power antenna, XM radio tuner or CD changer if i get those, etc etc.
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post #9 of 70 (permalink) Old 06-11-2002, 07:25 AM
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yes, that would be a good idea, beucase you will be able torun lotts of small things off that 10 gauge wire,
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post #10 of 70 (permalink) Old 06-11-2002, 10:33 AM
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I agree, I have a 600 watt kenwood back in my trunk, until i can afford something else (yes futureshop will let me just pay the difference for the new one) So I had them run 4 guage.
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post #11 of 70 (permalink) Old 06-11-2002, 10:50 AM
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Looks like everyone has a little different way of determining wire gauge. I've seen about 10 tables and they are all different. Usually there is a recommendation in the amplifier manual regarding wire size. Using 4AWG wire will leave you plenty of room for expansion and is the most typical size to run for a basic multi-amp system...
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post #12 of 70 (permalink) Old 06-11-2002, 10:53 AM
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Quote:
Originally posted by blkbute
too large of wire for too little power draw is not good
I have no idea where this idea came from but there is no truth to it. You could run 1/0AWG wire for a 50W amp if you wanted to. There would be absolutely no negative effect of doin this. Well, other than the cost and pain in the ass of hiding it under the carpet...
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post #13 of 70 (permalink) Old 06-11-2002, 12:21 PM
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wouldn't the resistence of the 1/0 awg wire be too great for the 50w amp?
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post #14 of 70 (permalink) Old 06-11-2002, 12:36 PM
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Quote:
Originally posted by gise1
wouldn't the resistence of the 1/0 awg wire be too great for the 50w amp?
WHAT??? That makes absolutely no sense what so ever. The larger the wire the less resistance there is to the current flow...
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post #15 of 70 (permalink) Old 06-11-2002, 05:01 PM
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I wouldnt use ten guage wire to run more than 400 watts RMS and thats a very generous number. I had 8 guage running to my 600 RMS amp, and it wasnt enough, I had to use 4 Guage.
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