Audio Excellence in Canada has a youtube video comparing the H590 and H390. Here is link:
https://www.youtube.com/watch?v=qIsZOwpWMMA
Everything I’ve watched, read, suggest H390 is the warmer of the two, which is why I bought the H390.
Fly HiFi in Auburn (east of Sac) has a "like new" used H590 for $4500. At that price, it might be well worth the drive.

