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Vali 2 tube rolling

Discussion in 'Headphone Amps (full-size)' started by capt369, Jan 8, 2016.
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  1. bcowen
    I hope the pins on yours are cleaner than that one. Such atrocities should be considered a death penalty offense. :smile:
     
    Old Deaf Donkey likes this.
  2. bcowen
    Entirely possible, but if they are truly using Brimars designs and tooling, they could be pretty decent. I'll probably have to try one whenever they become available to us US-ians.
     
    Old Deaf Donkey likes this.
  3. bibbs
    i think once Brimar are up and running with their machinery and enthusiasts things might get better. they seem keen. price was ok for a new not old stock tube, only £4 postage.

    TBH i CBA playing Russian roulette. if the brimar sounds good i'll stock up. how long do tubes last on average?
     
    bcowen likes this.
  4. Ripper2860
    I don't think they are using the Brimar design. Different plates, getter holder and spacers. Unlike any NOS Brimar I've ever seen, but who knows -- the may be totally AWESOME!!

    The general consensus on lifetime for 6SN7GT seems to be about 5,000 hours.
     
    Last edited: Dec 13, 2019
    bcowen likes this.
  5. bibbs
    best turn it off when not in use then. or it will be a tube a year.
     
    Old Deaf Donkey and bcowen like this.
  6. Ripper2860
    My rule of thumb is if it will go an hour w/o listening, I turn it off. If I'm stepping away and will be back to listening in an hour or less, I leave it on. Repeated power cycles for short sessions can be more stress on a tube than just leaving it on for a bit.
     
    Last edited: Dec 13, 2019
  7. bibbs
    would this be the correct pinout for an adaptor?

    [​IMG]
     
    bcowen likes this.
  8. bcowen
    Yup. Perfect.
     
  9. Keno18
    Santa stopped by early and dropped off a pair of Drop/Hifiman HE4XXs. Sounds great with the Vali 2 and new Tung-Sol 6sn7GTB. Completely different SQ from the HD6XXs I'm used to. Much more detailed highs, imaging is better because of it. More space around instruments. Really deep, but not overpowering bass. Takes getting used to.
     
  10. Ripper2860
    Congrats and enjoy. I'm a huge fan of Hifiman's sound profile.
     
    Old Deaf Donkey, Mr Trev and bcowen like this.
  11. Keno18
    Thank you :).
     
    Old Deaf Donkey and bcowen like this.
  12. Mr Trev
    I'd recommend giving 12au7s a try with the 4xx. My 400i loves them… huge soundstage that works so well with ambienty type music
     
    bcowen and Ripper2860 like this.
  13. Keno18
    You're right! Gonna roll through my little collection. Thanks for the tip.
     
    bcowen likes this.
  14. Keno18
    Just tried my secret weapon, the 12ax7 EH. Is it sacreligious to say I like this combination (HE4XX / Vali 2 / 12ax7 EH) better than the HD6XX / DarkVoice / 6sn7?
     
    bcowen likes this.
  15. Ripper2860
    Nope. Not at all!! :D
     
    Old Deaf Donkey and bcowen like this.
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