Meniscus Kairos-Preferred resistor values?

[jtgofish]

I have built some Kairos trial boxes and surprised to hear that the treble using the 6.2 ohm resistor provided sounds quite dull -and my room is not dull sounding.
A 3.9 ohm sounds much better.Maybe just hint bright.
Maybe a 4.7 would be about right?
Any suggestions?

 

[Prodigy85]

Just wondering what was the final conclusion on this. I feel the same with my Kairos as well.