Correct me if I'm wrong, but if you have the space for 10+ huge batteries to power 12-15k worth of huge *** amps...then you most likely have room for a few more woofers... I like both multiple woofer and single bad *** woofer set ups.. but it takes room to run 10-15k clamped, even on 1 sub.
I think this is an idea that's going to die in the womb.
Is the sub going to be able to move enough air to justify the massive power handling? In other words, is it going to be better than spreading 15,000 watts to say, four or more individual subs? I mean the MTX Jackhammer can handle a buttload of power but it isn't necessarily louder than 4 15s or similar setups due to inefficiency, plus it is over 300 lbs and it is impractical. I remember once there was a 22" "quadra sub", I forgot the exact name but it's a red square sub with four separate voice coils and 4 magnets all attached to the same cone and the company said that sub was able to take 20,000 watts RMS or something crazy, but it never made it into production and I don't even know if the company is still in business.
Basically you'll need to figure out if this prototype sub can justify its massive power handling (which is your 1st goal) by being able to back up its power requirements with equally impressive performance. If not then it is just going to be another statement piece.
I remember the quadra sub, circa 2005. Don't remember what company.
I don't run a company, i'll be just making a few at first to prove concept.