1200 watt would be a max, or split second power handling rating. You'd want to be putting about 350WRMS, that's Watts Root Mean Squared or in simple terms average constant.

Any amp rated to deliver 350 to 400WRMS will do.

Any more than that and you'll just burn out the voice coil from clipping in no time flat.

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No more GC8, sad face.
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