PSVANE Discussion & Impressions Thread

[SeagoatLeo]

How do you know he didn't? Isn't it obvious to any semi-intelligent person?

I TOTALLY agree with you on calling out companies for B.S. And yes some are very difficult. We're on the same page. But this isn't one of those cases.

If he can't figure out why the tube needed to be broken, then there is a much larger issue to discuss.

I disagree. I may not have thought of the problem of receipt of a replacement tube only to have one or the other being resold. Sorry, I only have an average IQ and high end system.

 

[PSVANE]

Okay, I'm confused. The first three lines have 6 sublines. So what is an A line and a Classic line? Are they discontinued?

The A line refers to the premium ACME series, while the Classic line refers to the basic HIFI series.

 

[mglik]

Why do people continue to pronounce the name P S vane??!
I checked with the company. It is Pavane as in “Pavane for a dead princess”!
The S is silent!
Stop being stupid.

 

[mariovalvola]

@PSVANE
On the Acme series, I have some questions.
- how far does the average Gm come in each pair of 300B but also 2A3 ( which I find interesting )
- what tolerance on the Gm in the pair the 5/6%?
- in the photos i see some tubes mounted slightly askew am I wrong?
- What is the difference between the ones you sell in your store and the ones I find on Aliexpress?
-does it guarantee me a more stable oxide over time and a serious matching compared to other Chinese productions?
I take this opportunity to ask:
The “heretic” 275A, is it discontinued? was it a good product? did it have good features? flaws? criticality? problems?
Are they coupled well even if they are single packaged? ( maybe in the future, I would buy a quartet of them).


Thank you

 

[mariovalvola]

Thank you so much for your sincere suggestions.

What you mentioned is exactly what we are currently working on, and indeed, they reflect some of the issues we’ve faced in the past — including the handling of oxides.
To address this, we’ve introduced a brand-new coating technology on some models in our latest Horizon series.

As for reproducing classic products, we have recreated legendary models from Western Electric and Philips. We are also actively exploring how to upgrade our reissue series, including which additional models to introduce.
However, this is not an easy task, as the birth of a product with a truly classic sound often involves a degree of unpredictability. Regarding the evaporation of barium oxide, we’ve been conducting experiments on this over the past several years.

I wanted to give the summit 300B Psvane a chance even though I was very biased.
I did not understand the logic of not stating in the enclosed foldout all the parameters measured. Taking advantage of the devaluation of the dollar and thanks to the promotion for the first purchase, I made up my mind.
They arrived in 15 days in Italy. Very good.
To the eye, to me, they are really ugly and rather frivolous. I don't understand the point of making a globe tube and then using a huge supporting mica connecting the anode to the bulb. The Linlai E-series, they are more consistent. Anode and electrodes are supported by a support structure screwed to the Stem while remaining isolated from the bulb
Everything else was surprisingly positive. The 300B summit are very well constructed, even the grid works properly interdicting the tube as needed. For a quick check just see at 300 Va and -100Vg. Ia= 0mA.
In tubes, even fine ones, I have seen genuine disasters that point to sloppy grid mounting that increases harmonic distortion even at just 1W.
At 300V 60mA the Gm is above 5mA/V for both. Great. For accurate listening, it is early but they seem to me to show great promise. A very smooth and refined mid and high range emerges with incredible introspective ability. I need to perform more focused measurements but I am already satisfied. These are really interesting tubes.

 

[adrianywu]

Why do people continue to pronounce the name P S vane??!
I checked with the company. It is Pavane as in “Pavane for a dead princess”!
The S is silent!
Stop being stupid.

Maybe someone has fat fingers and pressed the S instead of the A on the left.

 

[adrianywu]

I wonder why no manufacturer in China produce frame grid tubes such as the ECC88/6DJ8 and E88CC/6922.

 

[mariovalvola]

@PSVANE Having established my good intentions, I think it is clear that I am not seeking to cause controversy. However, I would like to understand why, even for flagship products such as these, there is a stubborn refusal to publish the tube data or, perhaps, well-made anodic curves where the parameters are measured geometrically. For me, this is not a quirk. It is a powerful indicator of the construction quality of the tube.
Since you know how to build DHTs very well, what would it cost you to be more communicative, highlighting, above all, the quality of your work?
One last thing: if these are flagship products of the best series, how can the 300A and 300B plus cost more? Are they perhaps better-made tubes, or what makes them cost more?
Many thanks

 

[Richard Austen]

@PSVANE Having established my good intentions, I think it is clear that I am not seeking to cause controversy. However, I would like to understand why, even for flagship products such as these, there is a stubborn refusal to publish the tube data or, perhaps, well-made anodic curves where the parameters are measured geometrically. For me, this is not a quirk. It is a powerful indicator of the construction quality of the tube.
Since you know how to build DHTs very well, what would it cost you to be more communicative, highlighting, above all, the quality of your work?
One last thing: if these are flagship products of the best series, how can the 300A and 300B plus cost more? Are they perhaps better-made tubes, or what makes them cost more?
Many thanks
View attachment 157646
View attachment 157647

Do you know if any modern tube manufacturers are providing the data you desire?

I know little of tube manufacturing, but from my understanding of what you write, this is about the quality of manufacturing and longevity and not about sound quality? Is this correct?

That is a reasonable request given how expensive tubes are these days.

I have an Audio Note P3 Silver Tonmeister power amp that is stocked, I believe, with PSVANE, as AN UK does have a relationship with them. I have ordered PSVANE 300B Horizon tubes, which have received good reviews on the budget end of the spectrum. Will they be reliable? I have no clue - I hope so. I know that AN UK was, for a time, using Elrog, but they were so horribly unreliable - their Australian dealer noted that they had a 100% failure rate. Takatsuki, they have sold for half a decade and have had a total of one tube failure. And they're said to sound phenomenal.

The other thing here is that PSVANE is selling a helluva lot more tubes than most, so in terms of sheer numbers, there are bound to be more failures - but is the % of failures higher or just the overall numbers? So if they sell 10,000 tubes and 100 fail, vs Elrog selling 100 tubes and 20 fail - you read 100 complaints on a forum vs 20, but in reality they are considerably more reliable.

 

[mariovalvola]

Do you know if any modern tube manufacturers are providing the data you desire?

I know little of tube manufacturing, but from my understanding of what you write, this is about the quality of manufacturing and longevity and not about sound quality? Is this correct?

That is a reasonable request given how expensive tubes are these days.

I have an Audio Note P3 Silver Tonmeister power amp that is stocked, I believe, with PSVANE, as AN UK does have a relationship with them. I have ordered PSVANE 300B Horizon tubes, which have received good reviews on the budget end of the spectrum. Will they be reliable? I have no clue - I hope so. I know that AN UK was, for a time, using Elrog, but they were so horribly unreliable - their Australian dealer noted that they had a 100% failure rate. Takatsuki, they have sold for half a decade and have had a total of one tube failure. And they're said to sound phenomenal.

The other thing here is that PSVANE is selling a helluva lot more tubes than most, so in terms of sheer numbers, there are bound to be more failures - but is the % of failures higher or just the overall numbers? So if they sell 10,000 tubes and 100 fail, vs Elrog selling 100 tubes and 20 fail - you read 100 complaints on a forum vs 20, but in reality they are considerably more reliable.

Western Electric is the manufacturer that provides the most data, Takatsuki is very comprehensive, Stradi seems to be, Emission Labs provides transconductance and, perhaps, Kron too (I can't remember).
Elrog, especially with the 300B, is a very special case. There is little data available. See photo.
The problem is that it is a very special tube. It has a history linked to an elderly tube manufacturer. In recent years, Thomas Mayer has fixed many things, but it remains a genetically and mechanically delicate tube.
Unfortunately, the average level of many enthusiasts is more than poor. With Elrog 300Bs, if you don't take certain precautions when lighting the filament, you risk damaging them in a short time. Therefore, not all complaints can be attributed to the manufacturer's responsibility. With the average quality of today's DIY builders, it is risky to sell special tubes. Its uniqueness and sonic qualities deserve every consideration. I have been using them for two years and have had no problems, but since I only have one pair, I cannot be a representative sample.