Favorite 300B: Sophia vs KR

Phaelon,
Since you have both Sophia tubes, what`s different in terms of built or physical characteristics? Different metal alloys?

Hi Charles1dad,
I sent the Carbon Princesses back. I should have compared the two more closely. All I can say now, is that no differences jumped out.....until I plugged them in.

This from the Sophia website:
"From the outside, the Royal Princess 300B tube looks similar to Carbon Plate Princess 300B (share the same glassware enclosure), however, the design philosophy is quite different and the internal design and material is different as well."

Thanks Phaelon,
I`m very happy with my Shuguang Treasure tubes, but these top Sophias seem quite special. I wish you many long and satisfying hours with them.

My 300B journey has come to an end. I've since moved on to a new soundscape - F2A11.

@Sakahara

Saw you were selling your Sophia's, was kind of confused until now.

You mean this one? http://www.thoeress.com/en/f2a11-stereo-amplifier/

Very unusual design for sure, but its German, so, must be good:-)
Their speakers looks very impressive to.

Interesting how it compare sonicaly to 300B based amp.