dual 4 ohm subs ran in paralle will make each sub 2 ohm. you need to figure out what the ohm load on the amp is. if its a 1 ohm amp, wire the remaining 2 +'s and 2 -'s into another paralle configuration and you have a 1 ohm load. if its a 2 ohm amp, ha, good luck, if its a 4 ohm load amp, run...