Dual Amp and Power Wire Size?

[bossman_19]

Two amps.

1. Rockford Fosgate R500X1D Class D Mono Block----------For my 1 RF P2D2-12 sub

•RMS Power Rating:

◦4 ohms: 300 watts x 1 chan.

◦2 ohms: 500 watts x 1 chan.

Says use 4 gauge.

2. Hifonics ZRX600.4 A/B------------------ Running 4 6x9s

•Max Power Rating:

◦4 ohms: 75 watts x 4 chan.

◦2 ohms: 150 watts x 4 chan.

◦Bridged, 4 ohm: 300 watts x 2 chan.

•8 gauge power wire to use

So how big should the main power wire be? 2 gauge? Then into a DB with 4 gauge going to the subs amp and 8 gauge going to the speakers amp both like what they recommend.

Or could I go 4 to both amps from the DB from the 2 gauge main power wire?

Or can I just run 4 gauge everywhere. With fuses in the main wire, then after DB one in each power wire? Just worried that its too much power going into one wire.

Just need a clear path to take and go from.

I already have a 8 gauge wire kit from past hook-ups.

I plan on doing this my self so don't tell me to get it professionally done...

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[Side Show 10+ year member]

o gauge main pwr wire, and 4 gauge to both amps pos and neg