[starkfu]

are these subs dvc? is your amp a two channel?

for example, if you have two 4 ohm per coil dvc's and a two channel amp, you would parallel each sub together, creating 2 2 ohm subs, then if you parallel those together you essentially have a one ohm sub, when you bridge the amp and connect the sub, the amp will internally cut the ohm load in half, cause you are basically paralleling the amp's output.

If you run one paralleled sub at 2 ohms to your 2 channel bridged you will have power rating at one ohm, or you can run 2 ohm stereo with both subs, one to right channel one to left, this is sometimes a better way to go, but i need to know more to give better suggestion.