I'm not sure to be totally honest but when I heard my buddies PSA speakers/subs setup the first word that came to mind is "dynamic". Super dynamic even. Like the crack of ice or crack of thunder just came through with serious authority. It was very cool. I know PSA doesn't get much love around here but I absolutely loved them at buddies house.
I have JBL speakers and they just sound beautiful.
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IF a) the amp has enough power to play a 'sensitive' speaker and a 'not so sensitive' speaker at the same high spl levels and b) you are indeed playing/levelmatching those 2 speakers at that same high spl level (whatever you prefer)....there should be no question "dynamic" or "non-dynamic" speaker IMO....
Maybe "dynamics" (a.k.a a high sensitivity speaker) is a big deal if you are running some fleawatt tube amp or back in the old days when there was very little power to be had from amps. But, in 2021, when power is cheap and amps have power out the wazoo, i wouldn't be interested in getting a dynamic speaker with poor bass extension.
To get bass extension, sensitivity is sacrificed.
This is a question of how much legroom an amp has....not whether a speaker is dynamic or non-dynamic. It makes no sense.