Dude, 2 ohm DVC subs are super versatile. High end subs will have each coil wound seperate, so you can just run one voice coil and the sub will play perfectly. If you blow it in 5 years, you can still run the other coil. Wont hurt to try. If it palys music with one coil wired up and the other discoonected, then the coils are wound seperate.
Another option is that if your amp is 2 channel then run each channel at 2ohms per coil.
I just picked up some Critical Mass amps. They are quite amazing! You can get these from metroholdings on
ebay for about 10% of their list price. This seller does dealer builds and they often have leftovers from the project builds and will sell off that equipment to normal people. C.Mass markets to pro athaletes and celebrities. Their prices reflect this, but the equipment is amazing if you can get it.
Their CM-AUE2.5k will drive that sub in parallel just fine. It is rated at 0.75ohm stable pushing 2500watts RMS. It has plenty of headroom and a SN of 118dB. Super clean amp. Good luck.