Power cable for a powered sub

Good grief, a 10AWG power cord for a subwoofer whose power amp won't pull more than 4 amps (480watts) at peak and the subwoofer connection to the power amp is probably a 16AWG at best and its current is probably close to 8 amps at peak! I guess the length of the respective connections explains this inconsistency. A 16AWG power cord is perfectly capable of carrying 4 amps - more just 'feels' better, I guess, but on a subwoofer!?
Bob P.

Actually Bob, my Dominus sounded best on the subwoofer, but I couldn't afford that amount of "better".

I know the numbers don't suggest a 10AWG should be required, but neither do the numbers suggest a 10AWG cord should sound best with a DAC, but they do

Thanks for the response.