The idea is very different. We both source our custom drivers from the same manufacturer. As far as I know, the Phil Jones uses standard cab design. This is dramatically different cabinet design. The contribution of the Waveguide/Vortex allows one driver to go as loud as 2.5 of the same driver. And the lack of unloading of the speaker and the fact that there is no cabinet tuning allwos a MUCH lower -3db point.
