does anyone know of a fused power/ground distribution block where....

one 1/0 awg positive cable feeds it and it somehow splits off into two separate fuses

and

it also has an input for 1/0 gnd cable that feeds two amps?

I have a JL Marine amp and a Harpoon amp and they both require different fuse ratings

JL M400/4 = 40A

Harpoon = 250W