Everything in your last post seems right, but according to your original specs, the amp puts out 1000 watts into a 2 ohm mono load. Which means the DD will get 1000 watts. 500 watts per voice coil.

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99 SVT
Sony ES CDX-C910
Sony Digital EQ/X-over
Sony Changer
McIntosh MC440M
Adire Audio Shiva
MB Quart/Vifa seperates