....anyone who has the wherewithal to drop 3/4's of a mil on a pair of M9's wouldn't have the slightest interest in mho about them.
As one who applauds the use of different materials for an enclosure for speakers but sees pretty much the 'same old same old' batch of drivers mounted in them, I'm kinda disappointed. JBL decades back 'round about the era of the L100's made a plastic enclosure that seemed to perform decent....but disappeared rather quickly...
Ah....drilling around....'dah taha' 🎶
The colors were rather brash, but taste being what it can be....*L*
Given the choice, I'd opt for a pair of MBL's, given the rarified pedigree level.
In my rather cynical HO, the M9 falls into the category of 'brag toys'....
"I can afford them, just Because I Can...."
...and you live in a gated community with security staffing...
Just saying....