is 200 amps sufficient?

[stockgp 10+ year member]

i need to know if a 200 amp alt will be enough to power everything i'll be running.

head unit will be a clarion hxd10.

up front, nothing big. probably an aura mr675h 6 channel and 3 was active components.

for sub duty i'll have an elemental designs spv.2. however, it's currently being reconed by woofercooker for dual 1 ohm coils.

power to the sub will come from an american bass vfl 150.1.

this is where i'm iffy. i'll be running the amp at .5 ohm load. i also want to get an external voltage regulator for my alt to run at 16v.

i'll be doing the big three in 4/0 welding cable, as well as my power and ground wire.

i already got a quote from mechman alts for a 200 amp and external regulator. he told me it's not wise to go higher than that since my motor (olds 307) is v belt driven.

so, is 200 amps going to be enough?

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[169db 10+ year member]

battery ?????

 

[stockgp 10+ year member]

oh, my bad. up front is an everstart maxx deep cycle. i forget the specifics on it. out back is the same, with a 205 minute reserve capacity. forget the other specs opn it as well. i can get them if they are vital.

both batteries were made by exxide before everstart switched suppliers