You better look for the real thing. Real HE no plastic cones.There is a certain minimum point of sensitivity to deliver the nuance & dynamics and it is far beyond the 92dB.
Just for inspiration:
DIY copy of Shindo Altec 604
Lowther America BIG OPEN BAFFLE/Lowther Field Coil/Altec 416 B
Carfrae LBH copy (by creation audio)/Lowther PM7A/Goto SG116TT
Sachiko/Fostex 208 Sigma/T 90 A
(or)
Cardersound MADISON/Fostex 206E/BMS 4540
The above mentioned tweeters are a subject of an added upgrade if you feel the need for. (I do)
George