PNW Import
Member
I ran 4 gauge Power and ground to the battery. it ended up being less then 10 feet. and i have that exact amp. he is well within spec.
I also have the JL HD 900/5 amp and was researching the same question. JL says their class D amps are 80% efficient which draws much less power and they must be sure of that. My power plugs are only 4 gauge.