Diagram Swr Amp-Kenwood KAC-9104D Subs-2 Alpine SWR-1242D?

Amp-Kenwood KAC-9104D subs-2 Alpine SWR-1242D? - diagram swr

I wonder what would be the best setting for these submarines as wise as Ohm i guess Im not sure if 1 ohm is the best and if I have a diagram of scale and to understand how they manage to cuz I have not improved amplifier, which tends to stop when the bass get a lot, but still the best way to get these Ohms Ohms Thanks in advance, too.