Audio Systems: car subwoofer info, dual voice coil, enclosure requirements

Question
i got a 15 inch kove audio armageddon sub the first ones made it says kove audio on the dust cap it is dual voice coil can you tell me the ohms rms watts peak any thing i know nothing of this sub i got it wired a 2 ohms and 200w rms sounds like shit why. is it because its under powered help me please

Answer
You can measure each coil to at least get the Re (the actual ohms).

Is it in the right box?

If you put a sub in the wrong box that is designed for it, it can sound bad or it can even be damaged.

I would contact Kove to find the specs and enclosure requirements http://www.koveaudio.com/

Also, is the gain set right?