u/DxaOfficial

I just bought some sundown E-69Cx and E-6.5Cx speakers and a Taramps 400w amp to power them but I already have a Taramps 3k on 0 gauge wiring to power 2 Sundown SA-Classics I was wondering what do I use to run them both at the same time. I also want to switch my old amp to the Taramps 400w amp