Favorite 300B: Sophia vs KR

Sakahara, Are your tubes broken in enough for an evaluation? As somebody with a WE 300b history, I would value your comparison.

01-21-11: Rgurney
I've tried all the 300B tubes except EAT and this is the best for me.

Although I meant every word I said about the Carbon Princesse’s improvement over the Golden Dragons, curiosity got the better of me and I upgraded to the Royal Princesses. These tubes take me to the music venues in a way that I haven’t experienced. Soundstage, imaging and depth are significantly more realistic than before. Inner detail improved, and not just marginally. The big shocker is the improvement in the base. I believe that this is the best I’ve heard from tubes. All instruments and voices are more natural and present. I don’t have the 300b experience that some have, but I find it very easy to believe Rgurney.

Phaelon - I'm glad you've found as much satisfaction in this tube as I have. I hope others do too.

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."