Vali 2 tube rolling

Discussion in 'Headphone Amps (full-size)' started by capt369, Jan 8, 2016.
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  1. alsius
    i've had the vali 2 for about a month. it came with a sylvania 6bz7 tube.
    i replaced the sylvania within the first week for a tesla e88cc gold pin, which was a decent improvement, but yesterday switched to a ge jan 5670 with an adapter. the ge sounds awesome compared to the other 2.

    i'm curious if there's anything considerably better than the ge, but for now i'm very happy with this tube.
     
  2. chef8489
    Using the 5670 adapter i really like the 70s Reflector 6N3P-E tubes. They are probably one of my favorite tubes i have tried overall put of any tube i jave tried.
     
  3. alsius
    i might have to check that one out. i was thinking of buying a spare of the ge, but that one looks inexpensive enough, might get that instead.
     
  4. chef8489
  5. alsius
    nice. you've definitely tried a bunch. how would you rate the ge jan among the others? i've read about the gold lions but those are pretty expensive for me.
    i ordered the reflector to try it out, thanks for the recommendation.
     
    Last edited: Aug 23, 2017
  6. chef8489
    Its a pretty good tube. Better than stock, but bass is not as deep as the reflector or highs as detailed and not as much width. I use my k7xx to evaluate the different tubes.
     
    rnros and alsius like this.
  7. Niggi183
    Recently got a tesla e88cc gold pin and in comparison to the stock tube, the bass (especially the subbass) seems to have improved quite significant. Wish I could A/B them properly, but for now I'm happy. :)
     
    Last edited: Aug 30, 2017
  8. Tuneslover
    It is a very nice tube although I find it a bit warm sounding and recessed in the high frequencies.
     
  9. DeeKay10
    Finally got some time to review the bunch of tubes I ordered a while ago, so without further ado:

    Name/Type

    Noise (with IEMs)

    Soundstage

    Frequency Balance

    Character
    NOS 6BZ7/6BQ7ALow, very slight hum.Wide.Lows unemphesized, mids and highs somewhat screechy.The stock tube you might get with the Vali. Detailed and packs a wide soundstage. Great with warm-sounding transducers, great for IEMs.
    Doesn't sound a terrible lot like a tube, definitely not smooth or gooey and both mid and low bass are "just there".
    NOS 6BZ7/6BQ7A (Canada)High, hums, with inefficient cans too. Noise during volume spin.
    Likely a bad tube in that regard.
    Medium-wide.Balanced, doesn't screech.Another stock tube you might get with the Vali. This one has a a narrower soundstage for some reason, doesn't exhibit as much an emphasis on the highs and sounds somewhat less detailed (perhaps as a result). Still great with warm-sounding equipment.
    Electro-Harmonix 6CG7Low-medium. Sligt hum.Medium-wide.Small lows emphasis.A smooth, slightly gooey-sounding tube, with a small emphasis on the bass. Soundstage is narrower and more intimate than the stock tubes. Personally the to-go tube if you want your Vali to sound like a tube amp.
    Electro-Harmonix 6922Low, very slight hum.Wide.Lows and high-mids are slightly emphasized.Another smooth-sounding tube, but this time more detailed than either before. Has a wide soundstage and can be reliably used with IEMs.
    JJ E8CC (gold pins)Medium, slight hum, slight hiss.Wide.Balanced.Smooth-sounding, very slightly less detailed than the previous one and with a slight empahsis on highs. Soundstage is pretty wide and all in all this is another all-arounder, although not as silent for IEMs as the first 6BZ7 and the 6922.
    My bottom line and recommendation: Got the Vali 2 to taste some tubes? Electro-Harmonix's 6CG7 and 9622 are the address. Like a more smooth, warmish low response? Get the prior. Looking for more balance and detail, or just using IEMs? Get the latter.
    Probably just my selection of tubes, but it seems Electro-Harmonix had hit a home run when it comes to the Vali 2.

    psed.jpg
     
    Last edited: Sep 5, 2017
    musicfan145 likes this.
  10. winders
    You want some tube magic? Get a 5670 to 6922 adapter and get an older NOS Western Electric 396A tube with a square getter. All the tubes you have tested so far are terrible in comparison.
     
    Guidostrunk likes this.
  11. Wyd4
    Interesting

    Considering picking up a vali2. But after a stereotypical tube sound. Wondering if this setup might fit the bill
     
  12. Guidostrunk
    Look for some 50's Tung-sol 2c51, Bendix 2c51, and some Western Electric 396a. The GE 5 star triple mica are awesome tubes, but there's others to be had. The 5670 variants are much cheaper as well.
    Here's some tungsol's. Can't beat the price either.
    http://www.ebay.com/itm/151621028745
     
  13. Guidostrunk
    Yep! Lol
     
  14. Andrew Nguyen
    I have tried the 6922 EH, got it from upscale audio, but it didn't quite do it for me either. It provided more bass, but, to me, it lost some high clarity and a more narrow soundstage. It's still way better than the stock tube for sure. I ended up getting a Philips 7dj8. I think it has clearer highs and upper mids, wider soundstage, and cleaner bass. YMMV.
     
  15. cebuboy
    Hi guys, been reading this thread for a while and I'm looking for a tube that would make this little amp as tubey as possibe. Any recommendations and suggestions are highly appreciated.
     
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