PSVANE Mfg Co replaced my older 6SN7 CV-181 TII tubes


Sharing - in case this might help others. This came out of the blue unexpectedly.

Over the holidays I had written PSVANE Co Mfg asking why my older TJ Full Music 6SN7s simply sounded better than my 3yr old PSVANE CV-181 TII tubes I only used 1yr. These TIIs had a mfg date of Oct 2021. Used them some, they got dull. Had been just sitting there in a fancy box and I happened to mention it vaguely over one email that was more about the new line of tubes and wondering about change overall with the new series of tubes. I was not there for any other reason.

Also confirmed that PSVANE did in fact buy tooling and some of the smaller tubes business from TJFM after the father passed on. Another reason I was comparing.

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I was #1 asking if any of the TJFM tooling and offerings had made its way into the new lines of PSVANE had been offering in 2024, including ArtSeries, Horizon lines.

#2 reason was to get an idea of what may have changed since coming out of the pandemic and/if there were updates on the overall design, quality, testing, QA for any of the 6SN7 CV-181 types of tubes, PSVANE, other lines.

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Long story, I get this reply back a day or so later from someone there [not identifying a name, just an email distro list] asking me to send photos of the tubes, test tags, boxes etc. Back and forth a few times over email with good English and extra help coming in - nice, interesting.

I had also recalled recently seeing psvane tubes showing up here as.a member on Agon and that time was short lived before being removed by Agon admins or someone. It was clear to me they were trying to assess their position, customers, and any feedback they could get here on Audiogon. So, I gave it directly over email. Honestly,still hung up on why my older TJFM tubes sounded better :)

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RESPONSE:

PSVANE immediately came back and told me there were known "quality assurance issues" during that Oct 2021 period and they "would happily replace the tubes with new ones", shipped to me "free of charge", direct from the factory. Also expressing how those matters have since been resolved and did not want unhappy customers.

I agreed to their policy to physically "break my tubes, smash the glass, photograph them, send them photos". This is so bad tubes don’t end up back on the market being resold and causing further complaints no longer the case with new versions.

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Tubes arrived in 17 days after they agreed to pack well and ship. They are the same TIIs with a different looking "T Series" label on the box outside for T-Series.

From the outside, same shape, size, same gray coating, bigger than my TJ Full Music as before. These 2025 tubes look close to the 2021 version outside.

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SOUND, out of the box:

First test they were a little veiled over for the first 1-20 minutes. At hours 1-4 increasingly opening up, texture and sound stage all coming in at once - with definite separation, not blurred together at all. Pretty neat actually.

6SN7 tube preamp, 50w Class A solid state amp for the first try. Tube amps later.

Track:"In my secret life" by Leonard Cohen

Hearing his voice direct at the center, and female singers coming out of Right & Left channel at the speakers from both sides - all at the same time but with real separation. Some of my other 6SN7s can co-mingle the sound just a little bit. 

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Changes:

  • Nicer tone
  • New texture
  • More open, perfect speaker to speaker side to side sound stage
  • A bit more separation of everything, all singers and instruments
  • A bit more layering now (and this is my SS amp, not my tube amps)
  • Other tracks, Nils or Stevie Ray, Guitars sound more authentic

Why Share:

I replied to the person of authority there who replaced these tubes for me that I’d make a post of exactly what resulted and that I’d tell it straight as I hear it good or bad starting out. Maybe some updates later over time as tbd.

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Next:

I’ll leave these full replacements in my preamp for at least 90 days or unless something changes.

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Summary:

Glad I gave these newer 2025 PSVANE a 2nd chance vs buying others like the Horizon or just staying with my older TJFM still lasting well, gonna store those.

We’ll see how this goes and if they last. Hope to keep them in play, they sound very nice right now. yes

 

Not sure if this helps anyone or not but some times it might be worth giving things a 2nd try maybe, and particularly so when the MFG wants to help make good on it.

Enjoying what Im hearing right now. It’s causing me to keep my SS amp in play for longer too, no joke the guitar tone, texture, and spatial sound is extra nice now fwiw. .

 

 

decooney

@decooney no these did not come from the Psvane factory store.  I believe the reseller on Amazon was Hi Spot or something similar.  It’s a Chinese reseller.  Replacements are due to arrive next month, but maybe they’ll arrive early like the first set did. They’re shipped from China but the return address is Portland OR.  Strange. I’ll report back once I listen to them.

Update-2: about 10 days mild play time on the new 2025 PSVANE CV-188 TII MKII (6SN7) tubes now. The leader contact at PSVANE manufacturing kept referring to these as the new "Art Series" yet they look like the former Gray and Gold TII MKII  tubes as before.  

Two observations.

- better for sure than the same tube manufactured 3 years ago

- more open, more texture, and more details coming through

Comparison:

I still like my former sets of prized TJ Full Music 6SN7s and while these new PSVANE were close the first 1-5 hours, after about 20 hours play time I can truly report  these new PSVANE replacements have surpassed my best TJ Full Music pairs, they surpass my best matched 1960s vintage Sylvania 6SN7GTs, and all of my other re-ssues 6NS7. Man, I hope these last. They are very nice sounding. 

Other possibilities:

I wonder if I was provided a pair of their very best tested matching sets for replacement, I did mention I’d report back what the results are once I get time on them. Not suspicious but I am curious, or the first 2021 set was really that bad.

All replies welcome.

 

they surpass my best matched 1960s vintage Sylvania 6SN7GTs, and all of my other re-ssues 6NS7. Man, I hope these last. They are very nice sounding.

This is the happy+sad part.

@decooney ,

I am happy and disappointed with Psvane at the same time. So about 5 months ago, I tried their Horizon 12AU7 tubes and was so happy with the sound that I decided to store the Mazdas for future use. Unfortunately, in exactly 4.5 months one of the tubes went bad - so bad that I could hear the "hiss" 10 feet away where I sit. They asked me to create a video, analyzed that and then asked me to break the tube and sent the pics...etc, etc. After that they sent sent me a new replacement pair. In the meanwhile I started using the Mazdas. But when I got the Psvanes back, I liked them better than the Mazdas I have.

So it is a sad story that, even if they sound better, they lasted only 4.5 months and now if this pair goes bad in, let's say 6 months, it means that they only lasted about 11 months. While they have a warranty of 1 year, I am not sure if Psvane will honor that for the replacement tubes. I really wish they had a good quality control.

Needless to say, I will not be purchasing their Horizon series again. If I have to get a Psvane, it might be the ART series from Vivatubes. I will also look at Electro-Harmonix in future, as I understand that their GOLD pin series are significantly better than the non-gold pins.

And I think you are absolutely right - these new tubes do sound like the TJ Full Music.

To @milpai thanks for the update and sharing your story too.

You are now in the same position as me, waiting about your replacements, "if they will last".

The only added context or hope I have is how this unnamed leader informed me they "do" acknowledge having quality" issues with tubes made in the 2021 time period my last tubes were made.

Did you happen to take a photo or still have the test cards for your prior tubes that went bad prematurely - did they show the month & year manufactured?

At least you guys got your replacement tubes.  My 12au7 Art Series replacement set was shipped 12/27 and expected delivery per Amazon is by 2/25.  I guess they’re on a slow boat from China🤣