wiring the subs up in 4 ohm would be nominal sound,
Wiring the subs up in 2 ohm would be the most pound for the buck.
So I'll teach you how to do both.
Wiring in 2 ohm...
The two terminals ++ and -- Take a piece of wire and connect one of the positives to one of the negatives. Now take a second piece of wire and connect the free positive to the negative. Now you have both of them running in parallel. This drops the sub ohm level to 2 ohms. Take two wires and connect to one positive terminal and one negative terminal. (THese two terminals have to be connected by the same wire) Usually the + terminal that's on the same side but opposite end as the - one is for that voice coil... *Hope you understand what I mean*
Now that you have one set of wires running out of the sub. Connect that to the + - set on the amplifier. Repeat the same thing with the second sub.
Wiring in 4 ohm
Follow the directions for the same as 2 ohm to wire up the subs, however before hooking it up to the amp, the two sets of wires from the subs, one of the positives on one sub gets tied to the negative of the other sub. Now you are left with 1 positive wire and one negative wire. This makes your subs running at a 4 ohm level. Connect the sub to the amp using the bridged method. The positive to the far end positive and the negative to the far end negative...
I hope that helps.. if you got anymore questions.. let me know
Jack