Of course your right, its a 811 horn I meant. I might want to try a build with these components inspite the big crossover issues. I have the Minidsp which is an active crossover that I can fool around with, and if the results don´t end up satisfing I could always get back to the orginal 4pi design.
As you said it would be a totally different speaker but I wonder if you have any particular design advise? Considering your experience and knowledge about the jbl 2226 woofer.
My plan was to stick to the same tuning-frequency, port dimension and volume as the 4pi.