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  1. mdr30
    Post

    Switchers - How to properly connect multiple amps to one DAC output

    Late to the party but I also needed a switch with XLR with (one) signal in and three outputs for my different headphone amps and got the Little...
    Post by: mdr30, May 4, 2022 in forum: Headphone Amplifiers and Combo (DAC/Amp) Units
  2. mdr30
    Post

    "Shortest Way" SW51 Amp Impressions (Simple SET Amp)

    Always a surprise, do you get two voltages from the cenotron? Are the input transformers in circuit for the RCA only?
    Post by: mdr30, Feb 4, 2022 in forum: Headphone Amplifiers and Combo (DAC/Amp) Units
  3. mdr30
    Post

    "Shortest Way" SW51 Amp Impressions (Simple SET Amp)

    Two different Telefunken EF184. [IMG] [IMG] The one to the left manufactured by Siemens, the right one by Telefunken: Raute, diamand,...
    Post by: mdr30, Feb 1, 2022 in forum: Headphone Amplifiers and Combo (DAC/Amp) Units
  4. mdr30
    Post

    My project "JLH-69"

    I would personally prefer an amp that can manage 50-300 ohms headphones, regardless if it's planar or voice coil drivers. And Zampotech, you can...
    Post by: mdr30, Dec 2, 2021 in forum: DIY
  5. mdr30
    Post

    "Shortest Way" SW51 Amp Impressions (Simple SET Amp)

    Reproduction of bass didn't even enter my mind when I listened to HD800 and SW51. And, even with the H output, elevation of bass would be 1 dB or...
    Post by: mdr30, Nov 21, 2021 in forum: Headphone Amplifiers and Combo (DAC/Amp) Units
  6. mdr30
    Post

    "Shortest Way" SW51 Amp Impressions (Simple SET Amp)

    Normally I run the HD800 on my balanced Dynahi, but when that needed some service I hooked it up to the SW51. The results are surprisingly good -...
    Post by: mdr30, Nov 20, 2021 in forum: Headphone Amplifiers and Combo (DAC/Amp) Units
  7. mdr30
    Post

    "Shortest Way" SW51 Amp Impressions (Simple SET Amp)

    What if you turn off your mobile?
    Post by: mdr30, Oct 15, 2021 in forum: Headphone Amplifiers and Combo (DAC/Amp) Units
  8. mdr30
    Post

    Vali 2+ Tube Rolling (Measurements)

    Six-seven years ago I went trough a whole lot of tubes for my hybrid amp to find out if they made any difference. They did. Many were very fine,...
    Post by: mdr30, Oct 3, 2021 in forum: Headphone Amplifiers and Combo (DAC/Amp) Units
  9. mdr30
    Post

    The vintage Ortho thread

    Oh, didn't want to mislead anyone. That is indeed a nice old badge, from Swedish radio manufacturer Scaniavox (latin for "the voice of Skåne", the...
    Post by: mdr30, Sep 30, 2021 in forum: Headphones
  10. mdr30
    Post

    The vintage Ortho thread

    Got two HP3s, both dual entry. Just to switch plug. I use mini-xlr for all my diy amps, nice and flexible with a trs adapter for single end amps....
    Post by: mdr30, Sep 30, 2021 in forum: Headphones
  11. mdr30
    Post

    "Shortest Way" SW51 Amp Impressions (Simple SET Amp)

    Bought a lot of five 6J51P from a Mr Jaroslav in Ukraine, a mixed bag. Two were definitely pulled (you can see some brown smoke in the glass), the...
    Post by: mdr30, Sep 26, 2021 in forum: Headphone Amplifiers and Combo (DAC/Amp) Units
  12. mdr30
    Post

    RAAL requisite audio SR1a Review: HOLY MOLY! Buy this now!

    Any impressions from long time users?
    Post by: mdr30, Sep 12, 2021 in forum: Headphones
  13. mdr30
    Post

    "Shortest Way" SW51 Amp Impressions (Simple SET Amp)

    I have one of them, and I'm very happy with it. The volume pot tracks excellently. [IMG] [IMG] [IMG] Don't know if it's Russian or Chinese.
    Post by: mdr30, Aug 21, 2021 in forum: Headphone Amplifiers and Combo (DAC/Amp) Units
  14. mdr30
    Post

    "Shortest Way" SW51 Amp Impressions (Simple SET Amp)

    The Telefunken EF805S is certainly an interesting tube with its own qualities, that's my initial impression. Time will tell how it compares to...
    Post by: mdr30, Aug 2, 2021 in forum: Headphone Amplifiers and Combo (DAC/Amp) Units
  15. mdr30
    Post

    "Shortest Way" SW51 Amp Impressions (Simple SET Amp)

    Got an extra Telefunken EF184 (bought a lot of three) if someone is interested. On a similar note, among the tube models recommended on page 5 of...
    Post by: mdr30, Jan 25, 2021 in forum: Headphone Amplifiers and Combo (DAC/Amp) Units
  16. mdr30
    Post

    Verum Audio - Exciting high performance DIY planar

    They're there to allow movement (flexibility). If there was just a "loose" flat diaphragm as opposed to a tight "drumskin" one, certain resonance...
    Post by: mdr30, Dec 16, 2020 in forum: Headphone Measurements
  17. mdr30
    Post

    "Shortest Way" SW51 Amp Impressions (Simple SET Amp)

    Yes, that's it. If you're lucky you'll find a pair for a decent price. This is not the most wanted tube type on the market.
    Post by: mdr30, Dec 2, 2020 in forum: Headphone Amplifiers and Combo (DAC/Amp) Units
  18. mdr30
    Post

    "Shortest Way" SW51 Amp Impressions (Simple SET Amp)

    Well, that's a British brand (not to be confused with American GE) with some highly desired and expensive tube models. They were also marketed...
    Post by: mdr30, Dec 2, 2020 in forum: Headphone Amplifiers and Combo (DAC/Amp) Units
  19. mdr30
    Post

    "Shortest Way" SW51 Amp Impressions (Simple SET Amp)

    Don't underestimste Soviet military valves, many of them are of very high quality. Running Telefunken now and previously GEC to good effect. But...
    Post by: mdr30, Nov 29, 2020 in forum: Headphone Amplifiers and Combo (DAC/Amp) Units
  20. mdr30
    Post

    "Shortest Way" SW51 Amp Impressions (Simple SET Amp)

    Most vodkas today are made from industrial etanol with some flavour added. The ones produced the old fashioned way with care taste best. Don't...
    Post by: mdr30, Aug 28, 2020 in forum: Headphone Amplifiers and Combo (DAC/Amp) Units
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