Answering myself :

  • driver Ø = 22.0mm
  • driver cavity Ø = 22.3mm
  • components cavity Ø = 19.5mm
  • components cavity height = 2.7mm

I got one in cyan, it looks very nice, this is my first D4v2, the tint is not very good though (SST-20 4000K):

Lvl1 duv 0.0047
Lvl3 duv 0.0049
Lvl7@30s duv 0.0044
(I didn’t test turbo)

They’re probably not using FA3 bins anymore.