I'm so sorry to hear about this. But as long as you're still here, there is always hope. So, don't give up just yet.
Your contribution will be cherished, and you'll be missed. I'm sure.
Wow! I really like the way you make your headband. For an ultimate DIY headphones, you'll want to try to make a pair of electrostatic headphones.
The stators of SR007 are indeed double sided. They are plate thru holes. The stator thickness is about 0.7 mm. They are thin and strong.
The way I see it is that the extra copper on these stators leaves them with higher capacitance. That's why SR007 sounds not as bright as other Stax models.
It would be interesting to try though.
There are at least 3 pairs of QA float around here that I know of. Do you mean that you prefer the boxing helmet style headband?
I actually like how K1000 places its drivers on the headband. I think I might do something similar for my next ones.
By the way, do you prefer QA float over other electrostatic headphones?