newbie dual voice sub wiring

Hi, Total newbie here...

I purchased a 12 inch Cerwin Vega Dual 2 Ohm Voice Coil Sub (HED 12.2) and a Monoblock Cerwin Vega 300.1 Watt Amp.

On the back of the amp there are four speaker outlets (+) ( - )   (+) (-)      On the wiring diagram it says to hook up a single voice sub, use only the first (+) (-) for wiring and Minimum Impedance = 2 Ohms.

However, for the dual voice coil sub that I have it says to use both (+) (-) (+) (-) BUT each voice coil must be 4 Ohms or greater!!!  (Which they are not,,,,only 2 ohms)

Am I screwed? Or is there a way to wire this and still get good sound and not blow anything? Can I wire it the way it explains for the single voice coil, but will I loose out on quality of sound? Or can I wire both coils in Series or something like that?

Thanks

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