Driver recommendation for something totally off in left field.

[why3zx]

Here is what I am looking for in a driver, this is for something I've had in my head for a home application. 

-Small footprint 8" or 10" if possible. 

-HIGHEST XMax possible. 

-Soft suspension, low motor force. 

-Rigid Cone. 

-Free air. 

I only have a 50A DC power supply at this time, so will need to stick around 500W on the amplifier side. 

This is not going to, or need to sound good at all, im 90% sure this project isnt going to work, but im working on something more along the line of a tactile transducer than a sound replicating subwoofer. 

Or even if anyone knows of a long throw linear motor? 

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