[kahwai]

Hi, i'm just wondering my upgrade path to add more amps. Currently i have a single 4 gauge from battery to distribution block then to two 8 gauge amps. Now my brother gave me his power hungry amp which requires 4 gauge power wire. Can i just add another 4 gauge power wire from battery to the same distribution block ?
If can, does my grounding need to be 2x of 4 gauge wire too ?

 

[clange2485]

What amps do you have and how long is the run?

 

[kahwai]

Currently im using one Lightning Audio LA 8004 and Infinity Primus 3000A. Both powered with single 4 Gauge to distribution block. The one my brother gave is
Lightning Audio L4600 which requires 4 Gauge power. I've already installed a fused distribution block and it has multiple input. So wondering, instead of re running the power wire, can i add another 4 Gauge Power wire from battery to the distribution block.

 

[lithium]

You can run it to the distribution block or just straight to the amp. Remember to fuse the wire not the load.

 

[JohnnyOhh]

also yes add 2x ground wires.

 

[miniSQ]

Or you could run 0ga into the fuse at your battery and split that into 2 4ga back to your distribution block and then the 2 8ga and single 4ga would come off the distribution block. All depends on what hardware you already own for wire coming off your battery.

Sent from my SM-G965U using Tapatalk

 

[lithium]

also yes add 2x ground wires.

this is a good point. Make sure your grounds match your power.

 

[kahwai]

Thank you for the quick replies, another silly question, my total current draw based on both amplifier's fuse is 150A. What fuse rating should i put for the 2x 4Ga from battery ? I have two 60A fuses, can i use it on both of the 4Ga power near the battery ?

 

[lithium]

The inline fuse near the battery is to protect the wire if it were to short to ground, so you should fuse the appropriate amount for the wire. The recommended capacity for 4 gauge is about 125 amps so you can fuse each 4 gauge wire anywhere between the intended load (amp current rating) and the max current (125 amps).

WIRE

This page of the bcae1.com site explains virtually everything that you need to know about wire for car audio applications.

www.bcae1.com

The fuses at the amp protects the amps. If an amp does not have a fuse built in you install an additional fuse near the amp.