I'd be very interested in this design as well. As others have said, I am curious what the real world advantage would be to this design? Is it similar output in a smaller package? Sonos has adopted this design in their subwoofer , but that is a niche product for Sonos owners. Plus they have oval 'racetrack' drivers to get the form factor they wanted.

I am excited to see what Axiom will come up with for new sub designs! Please keep us posted Andrew.
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Dan
In/On Wall 500 w M2 Center Channel