Help with build for 8 12's

[alpinef150]

going to be running 8 12 inch svc 4 ohm kenwoods off of 4 Hifonics HFi1000.1D amps and need to know the best way to run the rca signal to all 4 amps from the hu. i have used y splitter in the past but only for a 2 amp set up. this will be my first build with 4 amps and have heard splitting the rcas just wont cut it. i dont know too much about line drivers or anything. any advice will help becuase i have no idea what else to do. feel free to email [email protected] or text 727-729-1102 with advice.