Assuming about a 20% loss in efficiency you'd need 10 Amps for 1,000 Watts = 16 gauge more or less. Feel free to upgrade to 14. I always recommend cheap shielded cables to minimize noise radiation.
Kef KC62 subwoofer, stock power cord (oem cable) only 18 awg?
I bought a used KC62 and it came with a 18 awg power cord. It seems thin to me. For those who use the original power cord, could you please confirm it is indeed 18 awg? I looked at pictures and mine looks the same, but I'd like to confirm this. Thank you!