4ohm to 2ohm

Hello, I'm getting a sub for my car and I need an amp. The sub I'm looking at is the Dayton Audio RSS315HO-44 12" Its dual 4-ohm voice coils https://www.parts-express.com/dayton-audio-rss315ho-44-12-reference-ho-dvc-subwoofer--295-467 Since it's DVC I'd need an amp that runs around 700rms at 2...