Hi, I was wondering... for my next project, I'd love to do something unusual. I saw the MartinLogan Descent sub and some hybrid electrostats with a weird woofer. It has two drivers, one on each face of a cube. One "pushes" air into the enclosure, while another "pulls" it out. For all I know, this should be a dipole subwoofer, which would need to be heavily eq'ed in order to work. But maybe there's a bit more about this design... box parameters, something else. I was wondering if someone ever built something like it. TIA! Javier.