[Claritas]

I recently acquired a K340 (400 ohms) and think a tube amp will sound better with it, especially the treble. As I want to use 6SN7 inputs, I'm looking at the Darkvoices and La Figaros.
 
Has anyone tried either brand with K340? Which model / tubes?
 
How does it sound? Would you recommend that or something else instead?
 
Thank you for sharing your experience with me.

 

[Claritas]

Any recommendations or other thoughts? I'd be grateful for your input.