Currently this is "vaporware", but I thought I would put the concept we have put together out there to see what interest there might be in something this crazy, because it is totally possible, and the designing part of my brain simply cannot be stopped so I just keep coming up with these things.
It would require major custom tooling to make most of the parts, so cost would be very high, as they would not be done in very high numbers, if at all, so this is not a "value" proposition in any way, that being the case its likely most practical to make it a finished "system" vs just the raw driver, although we are open either way if anyone is interested in just the driver. Finished sub would be in the 15-20k each range, driver probably around 10-12k each
Here is a general rundown of the features;
Driver would be underhung with;
Underpole Neo magnets, conical segmented ring system with venting through, and 4" diameter pole vent, think halfway between neo radial and the common under pole slug, so the pole vent size is kept large for low turbulence, magnet volume is high, and is kept far enough from the coil to stay cool.
Under 100lbs total driver weight
10" diameter voice coil, quad 4ohm flat wire.
Full aluminum sleeve over pole, maybe even aluminum sleeve outside the coil too, I think we can keep the normalized inductance to 1mH/ohm or less.
Solid carbon fiber cone/former/dustcap, as one piece structure.
Custom machined modular aluminum basket
For the finished subwoofer the cabinet would be good around 150-200L, so about 28" wide 28" high 24" deep with curved sided cabinet nice finish etc. The amplifier would be a 4 x 2400 watt unit, one channel per coil, so 9600 RMS total, we have the rack version from the 18.2 or we can do a plate version built in like we used on some custom 21.2's we did last year.