Amp Wiring/fuse question Options

[djrob90]

Right, I’ve got 4 amps, 4 10” subs and 2 powercaps. The intention is to run the amps off of a FUSED distribution block (1 into 4) and another distribution block for the caps (1 into 2) My old setup of 2 amps required a 30amp fuse and 40amp fuse on the block and there was a 70amp fuse on the main 4 gauge cable really close to the battery. My question is that now, aside from these 2 amps, I’ve got a further 2 amps that require a 40amp fuse and a 60amp fuse, this takes the total amps upto 170 and will obviously blow the 70amp fuse in the main cable. I’ve never seen any AGU fuses rated this high and I was wondering, am I being overkill with the fuse in the battery splice (as everything else is individually fused) or should I not be pulling this sort of amperage from one piece of 4 gauge and should I run another piece instead?

[djrob90]

Thats cool, well my setup is as follows:

1 x amp rated 2 x 75w RMS
1 x amp rated 2 x 100w RMS
2 x monoblock amps rated 1 x 400w RMS @ 2 Ohm each (2 subs off of each amp)

Its actually the smallest amp thats got 1 of the 40 amp fuses even though its not very powerful??

Do you really think I need to upgrade to 2 gauge based on this?? And also what does upgrading the alt involve, is it costly?

Thanks for your help!!