@OP
You may consider , speakers with AMT tweeter.
I think AMT tweeter is a bit like an harmonica. It may pair well with tube gear
Audiovector has AMT tweeter.
You might like the Wolf von Langa SON. Cutting edge field coil drivers, dipole presentation, happy with 18 watts. Sounds alive.
Here’s a nice review: HFA - Wolf von Langa SON |