Khranok · Dec 14, 2013

Hey guys.

Fitting a powered amp into my Defender 90, 200tdi. Will I be ok with the earth/ground bolted to the bar around the inside of the cab next to the intrtia belt behind the passenger seat? I guess it's a torsion bar or inner roll cage bar or something?

JonnyP · Dec 14, 2013

If its bolted to the chassis then yes, but i am no expert

Khranok · Dec 14, 2013

Seems to he working fine. Guess we will see if it drains my battery to nothing by the morning! If not, all is good! XD

mick the builder · Dec 14, 2013

Khranok said:
Hey guys.

Fitting a powered amp into my Defender 90, 200tdi. Will I be ok with the earth/ground bolted to the bar around the inside of the cab next to the intrtia belt behind the passenger seat? I guess it's a torsion bar or inner roll cage bar or something?

Why not back to battery as your so near it anyway?

Khranok · Dec 15, 2013

Just onto the negative terminal? If it gives me any jip I will do, seems ok for now though

mick the builder said:
Why not back to battery as your so near it anyway?

Shifty1962 · Dec 15, 2013

Most professional audio installs run direct to the battery to minimise interference and voltage drops.

AceB · Dec 15, 2013

If the amp has a fused power lead you might want to fit another fuse as close to the battery as possible especially if the existing one is inside the cab. Just gives a bit of added protection if the supply cable is shorted prior the original fuse.

SteNova · Dec 15, 2013

AceB said:
If the amp has a fused power lead you might want to fit another fuse as close to the battery as possible especially if the existing one is inside the cab. Just gives a bit of added protection if the supply cable is shorted prior the original fuse.

mines screwed to the top of the battery lol

Untitled by Ste_Nova, on Flickr

AceB · Dec 15, 2013

So are mine, I learnt the hard way during a radio weekend what happens when some 4 guage wire shorts across a lorry battery and there's no fuse. There was a lot of smoke and not a lot of insulation left on it.

sp00k · Dec 15, 2013

Shifty1962 said:
Most professional audio installs run direct to the battery to minimise interference and voltage drops.

+1 and fuse as close to the battery as possible on the + side.

Khranok · Dec 15, 2013

Bugger me, that's some cable management. Not got a metal strap over mine so I will just slap it onto the negative and should be hunky dory!

SteNova said:
mines screwed to the top of the battery lol

Untitled by Ste_Nova, on Flickr

Khranok

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