At the end of the day, what’s the sound that meets the buyer? From my chair Klipsch made a smart decision going with the Celestion driver, because it gives them the opportunity to cross over to the bass horn just above 300Hz (where it’s needed, because crossing higher would have the bass horn at difficulties here), and that takes a special driver and fittingly large horn to come to fruition, not least controlling directivity that low. Mind you, they have a point source from ~340Hz on up. The only equivalent by JBL to reach that low was the 2490H 3" exit compression driver, but that was a pure midrange driver and had to be crossed not much higher than 2.5 to 3kHz, and so would necessitate and separate tweeter. BMS and B&C have coaxial driver offerings that on paper extends low, but no doubt at higher distortion levels at elevated SPL’s all the way down to 300Hz compared to the Celestion driver.
@phusis ...I had the 9800 predecessor ~20 years ago now. I never heard the 9900, but, i’ve heard the jubilee. There doesn’t seem to be a optimal driver <--> crossover "mismatch", so to speak on the jbl ( associated IR --> perceived resolution/clarity/etc..)
The Klipsch is perhaps eeking out a win for the OP because of the glorious Celestion driver (all credit to Celestion, not Klipsch) and the active crossover --> possible mitigation of phase shifts, prevention of perceived energy scoopouts as is typical of Klipsches.
Eitherway, it’s ok.. i’ve got 4 Yamaha PA horn underdogs keeping me in hog heaven and maintaining fullness of my wallet recently. I’ve got the jubilee beat and If the 9900 sounds anything like the 9800, i’ve got it beat as well 😏.
It’s the end execution in a room/architectural space that matters. Here’s a paper for your reading pleasure...
https://usa.yamaha.com/files/download/other_assets/9/322589/i_series_white_paper_en.pdf