What size amp wire?

[fidget]

Hi All

Im refitting the interior in me van and am fitting the front amp under the drivers seat , cd changer under the passenger seat, and have a powered sub for the boot. But im fitting all the wiring so its nice and tidy under the carpet and rear flooring

My question is what size power cable should I be using for the powered sub, It has a 200 watt built in amp and its got a run of 4 1/2 metres to get from the battery to the back.

Its been a while since I dabbled in the world of in car entertainment so not to sure what to get

cheers James

[kevtherev]

you'll need cable to take 16 amps so 1.5mm is adequate

[California Dreamin]

Watts divided by volts equals amps so 200 divided by 12.5 volts approx = 16amps assuming the volume is turned up full.
You wouldn't want to run a cable that close to it's rating and you need to take into account a certain voltage drop over 4.5 metres.
2mm2 is 17.5amps too close
3mm2 is 27.5amps and what I would recommend.

20amp inline fuse/holder

http://www.autoelectricsupplies.co.uk/p ... ategory/11" onclick="window.open(this.href);return false;

Martin

[fidget]

Sorry for the slow response first day back at work

Cheers for the advice, got some ordered the s'morning

James