Ok guys my set up is as Follows:

Alpine CDA-9851
Infinity Comps Rerfrence 6.5
Ininfity Coax 6.5
Both amped by a PG
Monster wirring
kicker cvr 12 DVC
Pg 2 channel amp


Now the problem is last time i bought the Subwoofer it was a 2OHM and when my and a buddy of mine hooked it up it didint sound right, we hooked it up Series becuase it says the 2 OHM=4 OHM LOAD now today we are going to attempt to hook it up again.. can you guys help me out so it would be right and both coils wouldplay