Category Archives: 12AU7-T/TII

‘The Psvane 12AU7-TII beats them a lot!’

TII EL84 pair with boxFeedback from a recent customer Denis who purchased Psvane 12AU7-TII (GF grade A):

“Bonjour at Grant Fidelity

My Psvane 12Au7 are in, and as soon as i put them in my Italian hi fi preamplifier i loved them immediately, i mean not the tube themself but the music coming out of them.
i own NOS Amperex 12AU7 that i found amazing but lacking top end absolute clarity and transparancy, and i also tried the new Northen Electric 12AU7 that a friend borrowed to me , but with them i feel an evident tonal inacurracy in the mid-range, especially in the piano and vocal.
The psvanes beats them a lot!! better musicality and clarity/definition

i am very happy with my purchase

Best regards

Denis”

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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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“I could hear instruments that is not obvious previously”

Feedback from customer H. J by email from Malaysia:

“Hi again Rachel. I received a pair of premium grade A of 12AU7-T and 12AX7-T yesterday from Grant Fidelity of course and installed them in my Audio Space Line 3.1 preamp. Wow, the sound of the intruments ringing (extended), vocals much clearer with timbre improved, bass more solid, very musical and I could hear intruments that is not obvious previously. Great bang for bucks.”

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“Right out of box bring so much more…”

The tubes right out of the box bring so much more separation and depth to my system that I thought I had a new system altogether. The voices are really what grab my attention. Listening to Alan Parson’s Eye in the Sky LP, I am surrounded by the richness of the voices and delicate nuances in the music that makes you want to listen for hours. I was using some RFT’s, Siemens and GE-Jan tubes at first, all EC82 types. The Art Pepper LP; So in Love, Acoustech 45RPM pressing sounds so beautiful and the sax sings to you as if Art were playing right in front of you, as should be. I have only about 55 hours on these tubes but I know that as soon as I put them into service that they did an excellent job in helping to lay out the musical playing field. Depth and separation, and the ability to pop out of nowhere all seem like the traits of these tubes on my system. The accuracy and preciseness of the instruments seem to be more developed compared to what I have listened to in the past. What really grabs my attention is that the flow of music is more dynamic yet with a subtle reach into the voices and instruments that make each stand out more in a pleasant manner.

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Psvane’s bring a whole new “sophistication”

I am reclining in my listening room thoroughly enjoying The Rite of Spring due in no small measure to the Psvane 12AU7 Reference Vacuum tubes. I just recently purchased these new production tubes manufactured under tight tolerances in the Shuguang tube facility in China. The Psvanes replaced gold pin EH 12AU7s. The EHs were good sounding tubes in my heavily modified cj tube line stage. The Psvane’s bring a whole new “sophistication” to all aspects of sound. Most notable is a complete lack of “glassiness” in the upper midrange and treble, a smoothness to the musical texture without any loss in detail. The soundstage is open and natural. Bass is powerful and tight. These tubes are very quiet, a characteristic missing in my trials with NOS Mullards. Yes, they were warm and “musical” but the several pairs I used were always noisy…losing their vacuum?

HiFiMan

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“I am off NOS trail”

from customer Steven P. by email:

“I recently purchased two pair of the Psavane tubes, 12AU7 and 12AT7. I am not the first to tell you that these tubes are excellent. Bass is tighter, there is more overall clarity, and soundstaging is more precise. I am now off the NOS trail….”

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‘The Psvane’s bring a whole new “sophistication” to all aspects of sound.’

I am reclining in my listening room thoroughly enjoying The Rite of Spring due in no small measure to the Psvane 12AU7 Reference Vacuum tubes. I just recently purchased these new production tubes manufactured under tight tolerances in the Shuguang tube facility in China. The Psvanes replaced gold pin EH 12AU7s. The EHs were good sounding tubes in my heavily modified cj tube line stage. The Psvane’s bring a whole new “sophistication” to all aspects of sound. Most notable is a complete lack of “glassiness” in the upper midrange and treble, a smoothness to the musical texture without any loss in detail. The soundstage is open and natural. Bass is powerful and tight. These tubes are very quiet, a characteristic missing in my trials with NOS Mullards. Yes, they were warm and “musical” but the several pairs I used were always noisy…losing their vacuum?

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