whats the difference between these subs?
 

I am looking at the ROCKFORD FOSGATE T112D2 12" and the ROCKFORD FOSGATE T112D4. I believe the only difference is that one has a 2-ohm voice coil and one has a 4-ohm voice coil. here are the specs for my amp, which one of these subs would work better with my amp?

Brand: Phoenix Gold mono
Condition: New
RMS Power Output: 750W x 1 @ 2 Ohm
Peak Power Output: 1500W x 1 @ 2 Ohm
Built-In Crossovers: Variable 18dB
THD @ 4 Ohm RMS Power: 1%
Ohm Load Stability: 2 Ohm
Low Level Input: Yes
Built in Cooling Fan: No
Bass Control Knob: No

RE: whats the difference between these subs?
 

get the dual 4 ohm coils, and wire them in parralelle

RE: whats the difference between these subs?
 

Thanx