Just finished doing my review of the Elex.
Here are the measurements from the GRAS43AG for those who are interested.
Just for fun I used the Elex off the Cayin HA-1A MK2 tube amp, which has higher output impedance, and this is what I ended up getting. Really fun out it changes depending on OI.
In short, this is a fantastic headphone that’s like 99% of the Clear (I hate reducing it to a number like that but in this case it may be appropriate) - potentially better in some areas of its FR.