Search DBA, distributed bass array, Geddes, and study posts of noble100, audiokinesis, and millercarbon. Geddes worked out the relevant science and acoustics that is the basic foundation for using multiple subs. Duke as the only current maker of these type systems has by far the greatest technical knowledge and experience. Tim was a fairly early adopter and has posted extensively on just how well the Swarm works. And I myself used their combined knowledge in building my own DBA. https://systems.audiogon.com/systems/8367 Which is how I know the more, the better.
