By themselves you could run one subwoofer at a 2 Ohm load:
Together they cannot be run at a 2 Ohm load (your options with a pair of DVC 4 Ohm subs):
With the 4-channel amp you have you could only run a 2 Ohm load off of a single channel. Did you not read the previous thread regarding exactly this?!?!?!
You need to change subwoofers or get a different amp. What you have right now can technically work together but with less than optimal results. //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif