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.