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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
stts OP
9 posts
 
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!
gopher
499 posts
 
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.
cellcbern's avatar
cellcbern
44 posts
 
I have tested the Pavane/Psvane 12AX7's against NOS Mullards, Telefunkens, Amperex, and Mazda 12AX7's in my Pathos Acoustics TT RR integrated. The Shuguang tubes were the best all around, although the Mazdas were close.
jfrech's avatar
jfrech
1,816 posts
 
I went for the TJ Full Music 12ax7's in my Nagra PLL. Replacing highly tested EH 12ax7's from the Nagra factory with about 18 months time on them (a few hours a day).

The TJ's slaughtered em. Wasn't even close. I thought my stock tubes must have been broken. better dynamics, lower noise floor, better imaging and detail. Not a single thing went backwards.

I bought 2 replacement sets. I think I need to by 2 more sets...plus my phono stage takes 12ax7's also...I'll try em soon there....
pieman42
6 posts
 
i tried 3 other tubes in my c.a.l. sigma 2 dac (besides the stock one). the last one was a psvane 12ax7, and i've stopped looking. it offered the combination i was looking for and since i only had to buy one, it was relatively cheap ($34.00). it was better than a j.j, nos phillips, and a g.e. 5751.
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