Before shelling out $70k perhaps you might want to watch this Audioholics presentation first... and then buy some headphones.
I'm joking, but there might be something of consideration here.
If you're short of time you might want to skip ahead to the 20 minute point.
Interesting stuff, especially in light of your comments about electrostatics.
Check out the comments too.
How to Achieve Realism in Music Reproduction with Edgar Choueiri.
https://youtu.be/rPmiyOeTUdM
I'm joking, but there might be something of consideration here.
If you're short of time you might want to skip ahead to the 20 minute point.
Interesting stuff, especially in light of your comments about electrostatics.
Check out the comments too.
How to Achieve Realism in Music Reproduction with Edgar Choueiri.
https://youtu.be/rPmiyOeTUdM