Category Archives: Review & Feedback

Psvane 12AX7-T: “Outperform all other current production and some late 50′s RCA long gray plate”

Feedback received from customer Michael H. by email:

“Hi Rachel.  Received the Psvane 12AX7′s yesterday.  My intent is to use them as the first stage in the phono section of my Rogue 99 Super Magnum pre amp and based on what I’ve heard so far they are going to perform that function admirably.  To break them in and get a feel for their performance/sound quality, I installed them in the V2 and V5 second voltage gain positions of my series IV McIntosh MC275. I have driven them with both a Telefunken ribbed plate 12AX7 and now a REAL Tungsol long Black Plate 12AX7 in V1 the first voltage stage/phase inverter.  The Psvanes clearly let me hear the differences in the two tubes.   I have had both new production and NOS tubes in these positions.  The Psvanes are the equal of the most recent (RCA black plate 5751′s and prior to that Real TungSol Long Gray plate 12AX7′s) and easily outperform all other current production and some late 50′s RCA long gray plate 12AX7′s.  And….that’s only with 16 hours on them. “

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“There is no going back…”

Feedback received via email from customer Chris in Australia:

“Hi there, Rachel, just wanted to let you know that the tubes arrived in top condition on Friday 8th. I popped the 12AX7-T in first for a few hours and although it needed at least a couple of hours to get over the light bass and slight tonal greyness, the transparency of these Psvane tubes is wonderful! After 9-10 hours it simply becomes an essential addition to the TRI amp! There’s no going back after that.

To keep it simple, Rachel, I gingerly replaced the stock output tubes with the KT88-Ts and all went well and two days later everything seems fine, don’t know what happened all those weeks ago.

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Psvane KT88-TII: “sent goose bumps from my head to my toes”

Customer Jonathan M.’s feedback about Psvane KT88-TII tube upgrade from standard Shuguang KT88-98:

Hi Rachel,
WOW! That’s all I can say… Or, as John McEnroe used to say, “You cannot be serious”!
I have just finished listening to Supertramp’s Crime of the Century, and it is as if a veil has been lifted – I heard things I’d never before heard, but even better, the sound itself was so smooth and clean and tight and revealing and melodic and engaging… I have been listening to this album for 30 years and I feel like this was the first time I’d actually “heard” it.
The improvement over the stock tubes is quite amazing – sent  goose bumps from my head to my toes!
So, thanks again for your help along the road to real high fidelity.
Regards,
J.

 

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Psvane 12AU7-T (Grade A) vs NOS Telefunken 12AU7

Received via email by Thomas L.

“Dear Grant Fidelity,

  I’m writing to let you know that I have received the PSVANE 12AU7-T Grade A tubes.  I believe by now, a lot of people know that the PSVane T-tubes are good.  But I’m not sure if any one of your customer have done a direct comparison to a brand new NOS tube.  I’m comparing it to a Brand new NOS Telefunken 12AU7.  I’m sure you probably have heard the following details many times, this may be just a reiteration of what all you existing customers are saying.
  Just out of the box, the PSVane beats the Telefunken in EVERY WAY.  Most significantly is the level of details and clarity, the Telefunken is no where close.  This includes comparing with broken in Telefunken 12AU7.  Equipments in the soundstage are spot on.  String simply has more texture and reverb is more obvious.  The Tube reveals so much more details but not bright at all.  Soundstage depth and layering are much improved.  All of these improvement are just with $99 USD.  I spent roughly $230 on the set of NOS.”
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“I would have never thought possible”

Received from customer Lance L. via email:

“Hello Rachel: Just a line to let you know the 12AU7’S arrived on schedule. I have installed them and have only had a couple of hours of listening, but even in this short period of time I am starting to hear rather amazing sonic characteristics. The combination of the PSVANNE KT88’S and the 12AU7’S are creating a completely different sonic aura. I can already hear significant changes to my entire audible reproduction, that I would have never thought possible, especially in comparison to the GENALEX, TUNGSRAM; RCA NOS BLACK PLATES, and SHUGUANG tubes I have used previously. I am further impressed that the price point of the PSVANNE tubes is not “over the top” in comparison to many inferior tubes. I don’t know what the manufacturer is doing to achieve such incredible reproduction characteristics from their tubes, but it is definitely working.”

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“The Psvanes are significantly better than the Shuguang treasure tubes”

Feedback from owner who has owned both Treasure and Psvane 6CA7 (EL34) tubes: (original post on Audiokarma.org, member Pen Name)

“Ordered on Tuesday, a quad of these tubes were playing in my Shuguang I-25 on Thursday evening.  Thanks for the great service, Rachel!
The Psvanes (not sure if this is an official brand-name typo or a copyright thing – but I think the name really ought to be Pavane) replaced Shuguang black treasure tubes that appeared to be getting a bit worn.  When I ordered the tubes I was not certain that the rather modestly priced hardware of the I-25 would justify $360 of grade A glass – but now I am.  The Psvanes are significantly better than the Shuguang treasure tubes, even without burn in and now with about 25 hours on them. Of course my memory of how good the treasure tubes were at their best has faded – but I do not remember the treasure tubes to be as incisive as the Psvanes.  The Psvanes bring the system to a new level.
The I-25 really is a good little amp, capable of revealing the difference in these power tubes.”

 

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“the presence of an edge now and then—had completely vanished with these Chinese tubes”

See what SixMoons.com reviewer says about Psvane EL-84T tubes: “The matched pairs of EL84-T looked high quality with their gilded pins and felt reassuringly solid but how would they sound compared to the Russians? We had to be patient because the tubes had thus far endured only a few hours of playing time. Psvane suggests 75 to 100 hours to really get them going. We followed that advice and had the Kaivalya play at a very low volume for a few days. When show time was at hand, the difference to the ‘Russian sound’ was very clear. There was the same slam, quick impulse response to musical cues and solid soundscape but all with an extra. The impulse behavior was tighter and with a slightly fuller body as though now there was more mass behind the attack and the volts delivered had a higher charge. Compared to the Russians, tone was more polished around the edges and went down with a smoother finish. It is very likely that these Chinese tubes are less microphonic in character…..

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Better Than the Treasures

Got the Psvanes. They replaced KT88 treasures and prior to that Pentas and gold lions. There’s just no comparison. If I had to really quantify what I’m hearing I would say the Psvanes just have confidence to sound amazing where as the treasures sound awesome, but polite and demur. in either case the treasures and the Psvanes beat the pants off of the GLs or anything else for that matter.
Pez on AudioCircle
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6CA7- ‘they are exceptional tubes’

from customer Lyle C. by email:

“Greetings,
I bought a quad of the Shuguang Black Treasure 6CA7′s from you recently and love them. They are exceptional tubes, absolutely killing the EH 6CA7 and Tung Sol reissue EL34′s I’ve tried.”

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‘the clarity of the Psvane blew me away’

By Eirik A. via email:

“Put in the 12AX7 Psvane today replace Raytheon 1962 nos tubes .  The clarity of the psvane blew me away, wow…”

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