well i have everything ordered so i cant really go back but just wanted to make sure everything would wire up ok and nothing would like blow up or anything, here it is pioneer 680mp kicker kx600.1 15" ascenadant audio arsenal
if you put a 2 ohm load on your HU's internal amp you will fry it.
also, that KX600.1 puts out its max power rating at 1 ohm. the AA Arsenal is a dual 4 ohm sub, so it can only be wired at 2 or 8 ohms. not going to be a good match.