Power Wire Gauge for 2 Amps

[dnak24]

I need some help determining the appropriate wire size for my power supply. I currently have 1 amp (RE Audio DTX 16001) and 1 sub (RE Audio SE Xv2-12D2) installed from my local shop, but want to also install a new amp and component speakers for my front. I have an Alpine MRP-F300 on the way that i intend to use for my front speakers (not yet picked out).

Would the existing 4ga power supply be adequate for both amps or would i need something bigger? I plan to use a distribution block to the two amps but want to make sure I'm using the correct wire sizes.

I would go to a local shop again but the more I look around this site, the more I want to try and do it on my own. Thanks in advance for any help you guys can provide.

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[Qbenjamin 10+ year member]

You'll need a fuse distribution block, one that has at least 1 4 gauge output, and 1 8 gauge output.

The RE amp calls for 4 gauge, but the Alpine amp needs 8 gauge. Look for a distro block that say's 1 4 gauge in (from the battery) and at least 1 4 out (to RE) and 1 8 out (to Alpine).

May be overkill for you, but this would do: 2 Way Distribution System

 

[dnak24]

Thanks. So can I keep the 4 gauge from the battery to the distribution block?

 

[joey13091]

yes you can. It will work just fine. No need to run a new wire at all. Just get your distribution block connect the 4 gauge wire in and then the two power wires out to the amplifiers. I have a 0 gauge going to a block then two 4 gauge coming of of it to the amplifiers and haven't had a problem yet. I also don't have it fused at the block. Just up front by the battery.

 

[dnak24]

Thank you for the help.

 

[RemmySa12]

if u can run it use 0 gauge from battery to the block then have the 4 g coming out.