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tube rolling

  1. MrPoetry

    MC-240 Tube Rolling Questions

    I’m looking for advice on rolling the seven signal tubes in my McIntosh MC240. Budget is around $750, total (minus $200 already spent; see below). Two main questions: 1. Which of the seven signal tubes are worth splurging on? 2. What combination of tubes are likely to work well together? I’ll...
  2. I

    Ultimate Fosi Audio Box X2 Phono Preamp Mod

    Pedal Pimp Fosi X2 Mod Ever since purchasing my Fosi Audio Box X2 Phono Preamp, I’ve become obsessed with making it the best it can possibly be. After plenty of trial and error and extensive A/B testing, here’s what I’ve settled on: Outside Mods Feet: The stock cheap adhesive plastic feet on...
    • IASTM
    • Thread
    • fosi fosi x modification phono preamp tube rolling
    • Replies: 18
    • Forum: Turntables
  3. B

    PrimaLuna EVO and Tube Rolling

    I just watched this video about tube swapping and not surprisingly, there’s quite a lot the amplifier circuitry needs to change to take advantage of the different tubes. How does PrimaLuna accomplish this in their EVO amplifiers?
    • Bannon
    • Thread
    • primaluna evo tube rolling
    • Replies: 47
    • Forum: Tube Audio
  4. Morgan D

    Tube Rolling

    Hi, I will soon have an all tube system. I just have a general question. Which component in the analog chain effects the system the most? Where should I experiment with tube rolling. My thinking is the phono pre amp has the most influence. I know they all do to some degree . It is a 6L6gc 10...
  5. J

    Best ROI for rolling in tube tuners?

    Hello AK! I'm starting to roll tubes on a suhweeet McIntosh MR67 scored a few weeks ago, and it has me pondering where the best bang-for-buck is in tube tuners: audio amps? RF amps/demux? IF filter? Stereo amp/demux? So far it's been: 1) Left audio 6BL8 was a no-diamond Telefunken that flared...
  6. C

    Tube Rolling Preamplifier

    Back in December I was building a preamp to replace the headphone amp I use as a preamp and was struck by the idea to implement A/B comparison on the preamp tube by adding in additional preamp tubes and a means of switching between them. The idea worked and since I had not seen this before...
  7. Zack Sainz

    Scott 299B Tube Rolling

    Hey all! Happy New Year! Using my Scott with recapped KLH 5s, this pairing makes me quite happy! But now, I think it’s time to roll! I replaced my JJ output tubes with 6P14P-ER Gold Grids and they sound great! (I’m definitely going to buy another set as a back up) Next up: 6u8: I haven’t...
    • Zack Sainz
    • Thread
    • scott scott 299b suggestions tube tube rolling
    • Replies: 3
    • Forum: Tube Audio
  8. John Parkey

    Jolida Glass FX III DAC tube recommendations

    Greetings. I have searched and did not see a tube recommendations thread for the Jolida Glass FX III DAC. I have that DAC with all of the factory upgrades. Have used Russian Electro Harmonax 12AX7EH tubes in place of stock tubes and that made a nice difference, richer sound, better dynamics...
    • John Parkey
    • Thread
    • 12ax7 jolida dac tube rolling
    • Replies: 51
    • Forum: DACs
  9. sonduciel

    Setting Up New System: Decisions!

    Good day to all. I joined this forum today, in the midst of a months long project of setting up a new music system. My 35 year old B&K ST-140 (100wpc version) power amp and Superphon CD-Maxx preamplifier were dying, and with the electronics I've been looking at, I realized it's time to trade...
    • sonduciel
    • Thread
    • midrange primaluna rogue cronus magnum tube rolling
    • Replies: 19
    • Forum: Introductions
  10. angelaudio

    5V4 good substitute for 5U4 in an MC30?

    Was told that the 5V4 tube takes a little longer to ‘warm up’ and doesn’t send voltage ‘downstream’ as fast as the 5U4 therefore it would be ‘healthier’ for the amp and ‘prolong’ the life of internal components. A lot of quotation marks in that statement, I apologize. I’m new to tubes so my...
  11. angelaudio

    Can I use a 12AT7 tube in place of a 12AU7 ?

    I have a 12au7 in my MC30 already but I’m just curious to see if the 12at7 would change the sound at all. Thanks in advance
  12. Sam08861

    12ax7 tube rolling Fisher 500b

    I'd restored the 500B some time ago. Jim McShane Kit with PIO K40Ys and Matched Tung Sol quad from him also + IBBA. Decided to order a set of the Sovtek 12AX7LPS and got here this afternoon. After taking out the 7 12AX7s in the chassis, I found they all measured ~56 on my Eico 625. The New...
    • Sam08861
    • Thread
    • 12ax7 500b fisher mullard telefunken the fisher tube rolling
    • Replies: 6
    • Forum: Fisher
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