kicker amps are stable down to 2ohms, if you wire a dual 2ohm sub i'll either be in 1ohm or 4ohm load. 1ohm load will be unstable so 4ohm load u wont make the most of the amp. dual 4ohm, u can wire it as 2ohm load and make the most use of the amp or 8ohm load.
if u want a dual 2ohm at 1ohm load u might want to look for a different amp. I went with a dual 4ohm and going to wire it in parallel for a 2ohm load.