NOS Tubes

audiocr381ve
audiocr381ve Posts: 2,588
in 2 Channel Audio
Just got a quad set of genuine NOS Mullards from Upscale Audio ($500 :# ) for my Rogue Perseus Magnum. The Perseus was just upgraded to "Magnum" status and everything is sounding great. Having spent that ungodly amount of money on tubes, I was wondering if it's a good or bad idea to let the Perseus burn-in with the NOS tubes installed. I don't want to have to buy another quad set of tubes at that price for the next several years so I want them to last. Thoughts?

Thanks a ton fam!
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Comments

  • thsmith
    thsmith Posts: 6,082
    You could use OEM tubes to burn in the unit but you will need the burn in the mullards as well. The advantage of using the OEM tubes if the unit had an early life failure that takes out a tube/s.
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  • gce
    gce Posts: 2,158
    I'd say burn them in all together. You like the sound so why take them out, it will only get better.
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  • voltz
    voltz Posts: 5,384
    I think I'd agree with gce here, but I also hate to see you sell the Rogue Stereo 90, seem a great fit to that preamp, but I know you like those W4S mono's.
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  • Joey_V
    Joey_V Posts: 8,552
    I applaud you for buying $500 tubes.. that's what I would do too. I think if you want to burn in the component, I would do it with the OEM tubes and then burn in the NOS tubes a little. Just be careful, tubes always have a limited life, but given that, I doubt you'd ever use it up.

    Congrats on the great set of tubes man!
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  • george daniel
    george daniel Posts: 12,096
    Pop those puppies in and get your listen on!
    JC approves....he told me so. (F-1 nut)
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  • headrott
    headrott Posts: 5,496
    edited February 2015
    What specific Mullard tube(s) are we talking about here? Different tubes have different life spans; so if shorter I would recommend not burning in the pre-amp with the NOS tubes installed. If longer, hell burn them in all together.

    Not sure what tube the Perseus uses. The Rogue website doesn't state which tube type, which is strange. (I am guessing 12AU7's?, but could be a few others).

    Overall, I would suggest using cheaper tubes if you are not doing critical listening while the pre-amp is burning in. Then, after a couple hundred hours switch to the Mullards to burn them in and enjoy the music.
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  • marvda1
    marvda1 Posts: 4,901
    i would not burn them in together. i would want to hear what the pre upgrades sound like then see if the nos tubes take the sound up from there.
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  • schwarcw
    schwarcw Posts: 7,337
    marvda1 wrote: »
    i would not burn them in together. i would want to hear what the pre upgrades sound like then see if the nos tubes take the sound up from there.

    Good point, or vice versa. Here the NOS tubes first then hear the OEM tubes. I think Rogue uses Electo Harmony.

    I put some vintage Sylvanias, the RCA red base 6SN7s in my Rogue 99 Super Magnum. Wow is all I can say!

    Congrats and good luck with your Perseus!

    Carl

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  • PolkieMan
    PolkieMan Posts: 2,446
    How much stereo tube amplifier power would I need for SDA1C to play at moderate levels 90 db, 30 watts?
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