What gauge power wire for distribution block?
Senior Member
Joined: Sep 2003
Posts: 6,760
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From: Nebraska
Originally Posted by Low_e_Red
I was laughing at your comment back. It was along the lines of damn your good. 
:o Sorry.
Ive been a little edgy the last week or two, you can see by most of my other post:o
Senior Member
Joined: Sep 2007
Posts: 859
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From: Tampa Bay, Florida
So at this formula...
Originally Posted by Low_e_Red
And RMS divided by 12 volts = Amperage through the wire.
So at this formula above, if you take his 550 watt and his 450 watt and add them together for 1000 watts and divide that by 12 volts = 83.33 amps? Right?
Senior Member
Joined: Sep 2003
Posts: 6,760
Likes: 4
From: Nebraska
Originally Posted by Devildog101
So at this formula above, if you take his 550 watt and his 450 watt and add them together for 1000 watts and divide that by 12 volts = 83.33 amps? Right?
Yes, thats pretty rough though as there are other things to take into account.
Say he has 1000 watts total and his amps are 65% efficient, and with the car running your actually looking at around roughly 13.8-14.4 volts.
So, you have 1000/.65 = 1538, divide that by say 14 volts and you come out with 109 amps.
Thats at full tilt pretty much though (volume cranked, test tones playing), with a normal daily driver playing music your usually ok taking about half that, which is roughly 54 amps AVERAGE.