Don't know why you would want to....with that amp, each sub would actually get less power by running both on a single channel @ 2ohm compared to running 1 per channel at 4ohm.
220w x 2 @ 4ohm
280w x 2 @ 2ohm
So, if you ran one per channel they'd each receive 220w. If you ran them both on a single channel, they'd each only receive 140w. Makes much more sense to run one per channel //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif