Best 845 tube out there?

Jeff - how does the Psvane compare to the trusty Shuguang "B" 845? Do you know if it is a direct replacement for the standard B tube from Shuguang?

And I'm totally envious of your Absolare 845!! I bet they are terrific!

I don't have the B's, but I do have the Treasure series. This Psvane tube is a brand new design and is based on the original RCA tubes of the 50's. I may be one of the first to get these. All I can say is they are fabulous, especially in the Absolare.

Have to agree with Jeff. Righrt out of the box the superior sound of the Psvane 845 was easily apparent. It`s very natural and sounds superb in his Absolare Passion amplifier.The previous Shuguangs he had weren`t bad at all(in fact they were good sounding to me). The Psvane is a higher level of sonic performance.
Charles,

I had a chance now to compare the WE845 Psvane to the original NOS RCA 845 tubes from the early 50's. I like the sound of the RCA tubes very much. The sound of the RCA's are very open and transparent but a little laid back compared to the WE845. The WE845 are a little more upfront and lively in comparison.

I’ve been using Mastersound 845 for three years, power tubes Shuguang 845B. I lost two of them in that period, one after 6 months and another one after two years (was plying 1200-1300 hours a year). Recently I've replaced 845B tubes with Psvane 845T mkII. The difference between 845B and Psvane 845T is obvious and instantly audible.
The thirst thing you hear Psvane is a cleaner sounding tube, less noise.
Psvane 845T MkII has much better HF extension and is a better resolving tube. You get better detail across the whole frequency spectrum. There is more low level detail, soundstage has more “air”, more ambience info. Images are more precisely drawn within the soundstage, localization of instruments more stable. 845B images are a bit vague in comparison. Overall Psvane 845T has better clarity, better transparency and slightly improved dynamics.