The Hornresp screenshot in post #1 comes from here - http://www.diyaudio.com/forums/subwoofers/174926-tuba-vs-taphorn-2.html#post2327768
The drawings (everything except the Hornresp screenshot in post #1) comes from here - http://www.diyaudio.com/forums/subwoofers/174926-tuba-vs-taphorn-6.html#post2334761
The Hornresp screenshot and the drawings do not match. The drawings are an updated design and as you can see from the pic you posted in post #2, the updated design has different Hornresp inputs than the ones you posted in pic 3 in post #1.
The designer is tb46 and he generally knows what he is doing but I'm not going to take the time to evaluate this design. Furthermore, even the designer didn't want to comment on whether or not it was a good design without measured driver parameters - apparently ED wasn't so good good at supplying accurate t/s specs.
Anyway, the thread is an interesting read, at one point the OP decides to ignore all the excellent advice he was getting go on instinct and draw up his own design instead -
no hornresp or t/l measurements... just balls to the wall
I don't think anyone ever built this design. Good times though.Edited by diy speaker guy - 11/19/13 at 10:09pm