Power Cable Requirements

Home / the12volt's Install Bay / Car Audio / Power Cable Requirements (

Topic Closed)

Welcome Guest :)

Members

Search

Register

Login

< Prev Topic Next Topic >

frans-c

Copper - Posts: 77

Joined: February 14, 2006

Location: South Africa

Posted: February 14, 2006 at 10:09 AM / IP Logged

Hi all! This is my first post, so here goes...

I'm the very proud owner of a 1985 W123 Mercedes-Benz 230E. A 65A alternator does duty in the electrical department.

I've ordered a few Kenwood components online, but haven't installed them yet. I'm not a total idiot when it comes to the installation of the equipment, but I would like some advice on a few topics.

Here's my setup:

* Kenwood KDC-X889 head unit (new)

* Kenwood KAC-8401 640W 4-channel stereo amp (already installed)

* Kenwood KAC-8151D 1000W single channel mono amp (new)

* Kenwood KFC-W3009 800W 4-ohm 12" sub (sealed, already installed)

* Kenwood KFC-6909 250W 4-way 6x9" rear-deck speakers (already installed)

* Kenwood KFC-1058 90W 2-way 4" dash-mounted speakers (already installed)

* Kenwood KFC-T205ie 170W 3/4" A-pillar mounted tweeters (already installed)

If I'm correct, both amps will need a current from the head unit that 'tells' them when to power up. What I would like to know is the following: can I connect both continuous power wires of the the two amps to the single continuous power wire of the head unit? Apparantly, one might need a relay in order to protect the circuitry of the head unit. Will this be the case with my setup?

Also, will it be fine to use two separate 8-guage amp kits for the amps; I'm not too familiar with distribution blocks? I doubt that I'll use more than 20 ft of power cable per amp (the amps are in the trunk). I did do my maths concerning the current draw of the amps - my car will be able to supply sufficient current (the two amps' combined current draw is 69A); I'm only interested in hi-fi quality sound, so I don't intend on playing music at maximum volume. The final setup will be the four full-range speakers and tweeters connected to the four-channel KAC-8401 amp, with the KFC-W3009 sub connected to the KAC-8151D amp.

Your help will be greatly appreciated!

F R A N S

1985 Mercedes-Benz 230E

320 000 km / 199 000 miles

Full MB Service History

Back to Top

geepherder

Platinum - Posts: 3,668

This member consistently provides reliable information

Joined: October 27, 2003

Posted: February 14, 2006 at 8:26 PM / IP Logged

Since you're only running 2 amps, you don't need to use a relay on the remote wire. If you add anything else to it, I would use a relay.

Yes, you can use 2 seperate amp kits if you prefer. There's nothing wrong with it. I'd just go with a 4 gauge kit with a distrobution block that splits into 2 8 gauge wires (easy enough for you to figure out), but you can do it either way.

My ex once told me I have a perfect face for radio.

Back to Top

Sorry, you can NOT post a reply.
This topic is closed.

Printable version

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

Search the12volt.com

Follow the12volt.com

Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

Power Cable Requirements

Sorry, you can NOT post a reply.This topic is closed.

Sorry, you can NOT post a reply.
This topic is closed.