Let’s start over, as simply as possible. Ignore the random postings of screenshots from hacked files that may or may not be complete and accurate, and focus on the known and relevant information - such as the published spin and @amirm’s Klippel scan of the complete system.
The raw speaker is designed to be used in conjunction with files loaded into a Crown DCIn amp (as @amirm tested it here
a BSS processor, or
using presets available in JBL’s Intonato processor.
It can be run off of one processed channel or two. Their engineers recommend the former. Note they call the latter case is called “bi-wire
” not “biamp,” which is IMO a considered demotion.
If you look at the measured frequency response of the DUT here, it’s largely as expected based on the published spin
for a deviation in the region around 7kHz. That means the highpass and lowpass filtering are working as intended, because the cross is almost 2 octaves below that. The errant treble is explainable by variances in the raw tweeter response. The measurements I posted show the tweeter on my 708i’s have lower output in that region, which would sum flatter with the filter.
And that’s what actually matters here. All the inside baseball stuff about crossover parts and such is a pointless sideshow.