What upgrades and wire for Rockford 1500bd?

[Captain_Ahab 5,000+ posts]

Ok..First off, I have factory alt and a Sam's battery.

I am currently running a Kenwood X811d which puts out a confirmed 900 watts.. Also running an Orion 400.2 putting out 200 more watts... I get voltage drops to about 13V..

I am upgrading my sub amp to a Rockford 1500bd.. I currently have 2 strands of 4 gauge coming from my battery. 1 strand to each amp..

My question is, will 4 gauge be fine for the Rockford amp? All the specs I have read say "4 gauge terminals".. Nothing about needing 1/0 gauge...

I will do the big 3 at the same time I install this amp..

What all would you recommend I do as far as helping my electrical?

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[TheFiverMan 10+ year member]

all 1/0 and the big 3 and u should be fine..extra batt wouldnt hurt either..