icdbko32

Right now i have my system wired up to accept my current setup and it works fine but i just got a new amp and need to change my fuses around and a possibly my wiring but not sure.

current setup:
-4ch oldschool ppi amp putting out 25 watts rms pc (25 amp fuse)
-2ch jbl gts150 running 50 watts rms per channel
it sais it draws 40 amps, there is a 20 amp fuse on the amp and your suppose to have another 20 hooked up to the wiring to it.

-2 infinity's reference 1252w's 2 ohms per voice coil
-60 amp fuse and fuse holder at battery
-distrubution block with 2x 30 amp fuses
-im running 8 guage wire to each of my amps and 8 guage for ground wires as well
-4 guage wire from battery to distrubution block and 4 guage ground from battery

now i want to take out the jbl amp and instead im putting in a hifonics bxi1208d. it has 900 rms at 2 ohms/450 rms at 4 ohms and has a 80 amp fuse built in.



what do i need for a fuse at the battery?
i was thinking of running a 100 amp fuse but i also have a 80 amp fuse right now so i wouldn't need to buy a new fuse holder if i used that one.

do i need to run the distrubution block before my amps because the amps already have built in fuses although i can't really find it on the ppi amp.

and is 4 guage sufficient enough for supplying that system?

and my subs being 2 ohms per voice coil does that means overall its 2 ohms per sub or 4 ohms per sub?