300b vs 845

I like the 845B tube best. I have tried standard 845's, 845B's, and 845C's. The 845B is clearly superior to the standard 845's. It has a much richer sound with lots of texture. I found the sound of the 845C's too bright for my tastes. The 845C's have more detail and tighter bass, but the sound is a little thin in my amps. On the other hand, the 845B's midrange is very full and pleasing at the expense of the frequency extremes. It kind of reminds me of the WE 300b sound.

Jeff

Isn't the Valve Art 845 just a rebranded Shuguang? The dealer told me this when I bought my 845Bs. I am curious because I may buy a spare set of 845Bs in the near future, and I want to make sure that I get the Valve Arts if they are different from the Shuguangs.