Shuguang 12AX7 Pavane/Psvane Reference.


I was wonder if anyone has feedback about these tubes. They have a very good review at Positive Feedback.

I'm searching for good tubes to replace the "no brand" 12AX7 tubes that came in my preamplifier. Sadly the "perfect" tubes (50's NOS Mullards or Telefunkens) can cost almost the same that what my preamp cost. Also, I have heard about overpriced old tubes that doesn't produce good sound, simply because they are poorly matched. With the Groove Tubes Mullar replicas out of the market few years ago, I really don't know what should be my next tube investment.

Thanks for reading!.
stts
Trelja, the tube you are talking about in your message (the tube in the top three, along with the Telefunken ribbed plate and the Sylvania Triple Mica Black Plate) is the Shuguang 12AX7B?. Is this the triple mica?.

Thanks.
Yes, I was referring to the Shuguang 12AX7B in the top three of our 12AX7 shootout. Some of the folks there participate in this forum.
I have about 40 hours of burning in on them. They say it takes up to 100 hours, so I will back in a few days!
I've got a Pavane 12au7 on its way to me now to try in my Eastern Electric DAC. If they live up to their reputation, I'll consider an additional pair for my preamplifier alone with a pair of their 845s.

For now they'll have stiff competition against the Siemens silverplate I'm using.