Fuses for main line from battery and fused distribution block

[hawk45 10+ year member]

I will be running two Profile amps off of a fused distribution block with 8ga wire that is hooked to battery with 4ga wire. What size fuse do I need near battery and what size fuses in the distribution block?

Specs on mono amp: (going to Sub)

Peak Power 650 x 1

310 watts RMS x 1 at 4 ohms (500 watts RMS x 1 at 2 ohms)

Specs on 4ch amp: (going to 4 6x9)

60 watts RMS x 4 at 4 ohms

90 watts RMS x 4 at 2 ohms

Thanks for help,

Hawk

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[Johnny Drama 5,000+ posts]

100a will work fine

80a would be ok too if that is all you can find.