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  • New Tubes For Onix SP3

    Hi
    I have an Onix SP3 That i need to replace one of the 5881 tubes.
    So now that i have a reason to do so i can look at other tubes but i am not too much in the know about them or where to get them.
    Any recomendations would be welcomed.
    I would like to stay with tubes that accent the lower to midrange frequencies.

    Thanks
    :) :) :)

  • #2
    I've never actually heard the stock tubes since I bought mine tubeless, but the Valve Art 350b's seem like a popular replacement for the 5881's and I certainly thought mine sounded good. Pretty affordable too.
    Angel City Audio
    East Street Audio

    ACA, Melody, Onix, NuForce, KR Audio

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    • #3
      Originally posted by woofersus
      I've never actually heard the stock tubes since I bought mine tubeless, but the Valve Art 350b's seem like a popular replacement for the 5881's and I certainly thought mine sounded good. Pretty affordable too.
      Thanks i will check them out.

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      • #4
        Originally posted by edward
        Hi
        I have an Onix SP3 That i need to replace one of the 5881 tubes.
        So now that i have a reason to do so i can look at other tubes but i am not too much in the know about them or where to get them.
        Any recomendations would be welcomed.
        I would like to stay with tubes that accent the lower to midrange frequencies.

        Thanks
        :) :) :)
        I would consider the JJ Tesla 6L6/5881 tubes from Eurotubes. Please understand that I have only heard the JJ 2A3-40, the JJ EL84, and the JJ 12AT7 tubes, all of which were of exceptional quality. I now run the JJ's exclusively in my 2A3 amp ahead of my black plate RCAs and other such top flight NOS. Additionally, I have read the reviews of the JJ 5881 and believe you would be quite pleased with the purchase.

        John

        https://ssl.eurotubes.com/cart/index...category_id=22
        Tweak City Audio WAF-1, Paradigm PS1000, Jolida FX-10 tube amp, Samsung Blu-ray, Beresford TC-7520 DAC, Apple Airport Express (living room)

        Hawthorne Audio 101515 OB Trio DIY speakers, DIY Bottlehead Stereomour 2A3 amp, DIY 6CL6 SPUD amp, Rythmik 370 OB Plate Amps (in stereo), Beresford TC-7520 DAC, Macbook Pro/iTunes & Decibel FLAC player for Mac, Sony S370 Blu-ray (listening room)

        Other stuff: Usher S-520, JohnBlue JB-3, MiniWatt, Glow Amp One, Nuforce Icon Mobile, Sennheiser HD595

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        • #5
          I would pick up some Russian Military Surplus 6P3S-E tubes off Ebay. You want the coin base(thin base) vs the standard thick bakelight base like most power tubes have as the coins everyone seems to like better.

          I picked up 2 quads last year, all work very well and I actually think they sound better than the brand new Tung Sol tubes that are generally thought of as the best 5881 for the SP3

          The 6P3S-E is a direct drop in and runs the same bias voltage, not sure about the 350b's

          I will also 2nd the JJ/Teslas, This is what Gary Dodd uses in almost all of his amps. I havent used the power tubes in the SP3, I have used the 12AT7.12AX7, and the 6922 and have really liked them.
          Kevin
          Motor City Custom Audio
          Your Onix and MELODY Dealer for MI,IN,IL,MO,IA,MN,WI and Canada
          Bringing you Chopped/Cut/Modified Subwoofer Kits and even Flames if you want

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          • #6
            Either the coin base or 350Bs will work fine. Both are good values. The 350Bs can take a little higher bias, maybe 1.20 to 1.25 or so. Some of the other options that I like will require socket savers/extenders.

            Replacing the stock 12AX7s with some GE 3 mica black plate 5751s is also a big bang-for-the-buck upgrade. I still have quite a few if you are interested.

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            • #7
              +1 on the GE 5751's
              Angel City Audio
              East Street Audio

              ACA, Melody, Onix, NuForce, KR Audio

              Comment


              • #8
                Originally posted by 1BionicEar
                Either the coin base or 350Bs will work fine. Both are good values. The 350Bs can take a little higher bias, maybe 1.20 to 1.25 or so. Some of the other options that I like will require socket savers/extenders.

                Replacing the stock 12AX7s with some GE 3 mica black plate 5751s is also a big bang-for-the-buck upgrade. I still have quite a few if you are interested.
                I have those very same tubes the 12AX7s and GE 3 Micas in my second SP3 bought them back in the AV123 days from a fine fellow went by the name of Tube Ninja. :D :D :D

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                • #9
                  I resemble that last remark. :cool:

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                  • #10
                    What are your prices for the GEs?
                    gotta print this thread out before it fades away.

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                    • #11
                      Prices are usually between $45 and $100 a pair depending upon age, condition, and version. I don't have nearly as many as I used to, but I still have a few pairs available. Send me a PM if you are interested.

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