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<blockquote data-quote="Savant" data-source="post: 119438" data-attributes="member: 546108">The power cable size is based on the Wattage you will be running on the system.. What is the &#039;total&#039; MAX and RMS watts for the amps that will be run on the main power wire? That&#039;s what determines the power wire size..&nbsp; Personally, I&#039;d suggest calculating based on RMS wattage.. if you go higher than the system can cleanly run you&#039;ll blow fuses instead of speakers (at least, that&#039;s my theory //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif )..I&#039;d also suggest a fused distro block close to the amp, each fuse should be just big enough to handle the RMS for the amp that line is feeding.. (again, my thoughts, others might disagree). A fuse at the battery as well, on the main power line..Here is a calculator I like to use to get a feel for what I&#039;ll need when I wire up my system (it&#039;s in transit as we speak! YES)<a href="http://www.eatel.net/~amptech/elecdisc/systemdesignassistant.swf" target="_blank">http://www.eatel.net/~amptech/elecdisc/systemdesignassistant.swf</a>I don&#039;t think you use a disto block for neg, just pos.. the grounds go to the body/frame of the vehicle and get back to the battery that way..That site (with the calculator) has a bunch of info and suggestions on amp stuff.. you might want to look around at it..Hope that helps..</blockquote>

[QUOTE="Savant, post: 119438, member: 546108"] The power cable size is based on the Wattage you will be running on the system.. What is the 'total' MAX and RMS watts for the amps that will be run on the main power wire? That's what determines the power wire size.. Personally, I'd suggest calculating based on RMS wattage.. if you go higher than the system can cleanly run you'll blow fuses instead of speakers (at least, that's my theory [IMG]//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif[/IMG] ).. I'd also suggest a fused distro block close to the amp, each fuse should be just big enough to handle the RMS for the amp that line is feeding.. (again, my thoughts, others might disagree). A fuse at the battery as well, on the main power line.. Here is a calculator I like to use to get a feel for what I'll need when I wire up my system (it's in transit as we speak! YES) [URL="http://www.eatel.net/~amptech/elecdisc/systemdesignassistant.swf"]http://www.eatel.net/~amptech/elecdisc/systemdesignassistant.swf[/URL] I don't think you use a disto block for neg, just pos.. the grounds go to the body/frame of the vehicle and get back to the battery that way.. That site (with the calculator) has a bunch of info and suggestions on amp stuff.. you might want to look around at it.. Hope that helps.. [/QUOTE]

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