is it ok to run 4 gauge to the distribution block then run 4 gauge to the sub amp and 8 gauge to the speaker amp? the only reason is because i dont have anymore 4 gauge to run to the speaker amp ill probly get some but would this work for now?
Main thing you need to figure out, is if you're pulling more current than the first strand of 4 gauge can handle.
If you're using an amp that requires 4 gauge, and draws enough power to take that 4 gauge near it's limit, and another amp on top of that, you might risk causing the first strand of 4 gauge to burn if it's not properly fused.
the amp tells you what is acceptable to run to it, if it has 4 guage terminals, you do not want to run 8 guage wire,, etc.... and, if you have 2 amps that draw alot oc current, then better to go to next wire up from the battery to the disto block.
i have 4 gauge from the battery to the distribution block. then 4 gauge to a 1600 watt hifonics, and 8 gauge to a 350 watt kicker for my regular speakers. Is that going to be ok