best wiring way

[LosDub 10+ year member]

maybe bit more clearer on fuses anyways, apply same to other amps i think they just 4ga input would prob run 8ga to speakers then

 

[smoka 10+ year member]

Ya, that amp doesn't come with fuses like smaller ones do. So you should have a fuse to protect the amp, and another fuse to protect the wire/battery.

 

[taintedplay 10+ year member]

kk. so a 200 and a 300. also, should i do a ground, or attach it strait to the negative on the batt?

 

[AllDayMJ 10+ year member]

fyi you'll need a 3a fuse on the remote turn ons...unless you like scary car coffin fires //content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif

 

[taintedplay 10+ year member]

fyi you'll need a 3a fuse on the remote turn ons...unless you like scary car coffin fires //content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif

are you sure not a 2a? hahaha jk

 

[AllDayMJ 10+ year member]

are you sure not a 2a? hahaha jk

well..depends what ga your rem turn on is, and considering how finicky fuses are, the 1a difference doesnt matter especially if its a slow blow fuse which can take up to 5min of over current before it might blow...fyi

and...http://www.powerstream.com/Wire_Size.htm

 

[smoka 10+ year member]

kk. so a 200 and a 300. also, should i do a ground, or attach it strait to the negative on the batt?

You can do either way. But I would ground to the batt. Having a common ground is good way to avoid ground loop noise.

 

[taintedplay 10+ year member]

sweet. im picking up some of ryans big huge batts soon\\and thanks so much for all your help smoka!

 

[McIntosh 10+ year member]

4 awg is rated to 125A //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

Where does this come from? 4 AWG should be 85A (depending upon insulation type). A single conductor in free air (not under carpet or underhood) is 125A. You're using the wrong ampacity table. 4 AWG in a car is good for 85 Amps max.

 

[Scoobydoo 5,000+ posts]

i dont know much about wiring, but i do know the best grounding point is to drill through the floor into the gas tank and secure it loosley

 

[smoka 10+ year member]

Where does this come from? 4 AWG should be 85A (depending upon insulation type). A single conductor in free air (not under carpet or underhood) is 125A. You're using the wrong ampacity table. 4 AWG in a car is good for 85 Amps max.

Your ampacity table is a conservative number and is designed to safely cover the infinite variety of AWG used in the field.

Technically the max load of a wire is determined by the voltage drop, insulation temperature limit, thickness, thermal conductivity, and air convection/temperature.

The only way to properly determine the capacity of a power wire is to get your data from the manufacturer. According to Knu (one of the more popular brands of power cable), their Kolossus 4ga is rated to 150a at 12-15ft. They don't specify if that number is on free air or bundled specs.

http://www.knukonceptz.com/assets/pdf/PowerWireSpec.pdf

 

[loopkiller 10+ year member]

Where does this come from? 4 AWG should be 85A (depending upon insulation type). A single conductor in free air (not under carpet or underhood) is 125A. You're using the wrong ampacity table. 4 AWG in a car is good for 85 Amps max.

//content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif I used the generally accepted Bible of Car Audio wire chart //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

 

[jco1385 5,000+ posts]

//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

i saw loops post, then i saw "where does that come from"... knew it was McIntosh //content.invisioncic.com/y282845/emoticons/hilarious.gif.02a037aad04aa96f19982b298a3d70a8.gif

watch out!! master electrician be knowzin.

 

[loopkiller 10+ year member]

//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif
i saw loops post, then i saw "where does that come from"... knew it was McIntosh //content.invisioncic.com/y282845/emoticons/hilarious.gif.02a037aad04aa96f19982b298a3d70a8.gif

watch out!! master electrician be knowzin.

I will admit that I do rely on other peoples' info and charts. I am not the all knowing genius that Mac claims to be. //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif//content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif//content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

 

[jco1385 5,000+ posts]

me too. but i don't think my advice is the gospel.