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  1. borrego
    Post

    Help me with sub $1500 headamps

    I have found a fix for the "grainly sound" of the Aurix: The two voltage gain transformers sit on a circuit sub-board which would got its...
    Post by: borrego, Jun 16, 2017 in forum: Leaderboard, Overboard, and Deals
  2. borrego
    Post

    Audio GD Singularity 19 - New R2R DAC

    I believe I have shared both the good and bad points of audio-gd products, equally, in my posts, from an current owner points of view. Yet you...
    Post by: borrego, Mar 5, 2017 in forum: Digital: DACs, USB converters, decrapifiers
  3. borrego
    Post

    Audio GD Singularity 19 - New R2R DAC

    Then you might be disappointed with the S19. Kingwa stated in his own Chinese forum that his final tuning done to the S19 analog section was to...
    Post by: borrego, Mar 5, 2017 in forum: Digital: DACs, USB converters, decrapifiers
  4. borrego
    Post

    Audio GD Singularity 19 - New R2R DAC

    I find there are more and more people in this community will "like" whatever Marv says, even in the (rare) occasions that he missed something...
    Post by: borrego, Mar 5, 2017 in forum: Digital: DACs, USB converters, decrapifiers
  5. borrego
    Post

    Audio GD Singularity 19 - New R2R DAC

    Most (better) DDC nowadays will have the unused XOs turned off to avoid interference. I.e. have the XO responsible for 48kHz multiple signal...
    Post by: borrego, Mar 5, 2017 in forum: Digital: DACs, USB converters, decrapifiers
  6. borrego
    Post

    Audio GD Singularity 19 - New R2R DAC

    Again, you claimed the 1st hand owner experience I shared making no sense, without reading clearly what I said and tried understanding the...
    Post by: borrego, Mar 4, 2017 in forum: Digital: DACs, USB converters, decrapifiers
  7. borrego
    Post

    Audio GD Singularity 19 - New R2R DAC

    audio-gd's factory burn-in is only for calibrating the voltage mid-point of the analog circuit section. Upon receiving, one still have to burn-in...
    Post by: borrego, Mar 4, 2017 in forum: Digital: DACs, USB converters, decrapifiers
  8. borrego
    Post

    Help me with sub $1500 headamps

    Not sure if it is the non feedback design giving it having low dampening factor. My E-mu Teak sounds quite grainy, but the T5p sounds smooth enough.
    Post by: borrego, Feb 13, 2017 in forum: Leaderboard, Overboard, and Deals
  9. borrego
    Post

    Help me with sub $1500 headamps

    With my HE500, the Aurix sounds more dynamic, transparent than the SA31SE. The SA31SE sounds smoother, more relax, and has bigger sound stage...
    Post by: borrego, Feb 13, 2017 in forum: Leaderboard, Overboard, and Deals
  10. borrego
    Post

    Help me with sub $1500 headamps

    The Aurix does not sound grainy from my Yamaha DVD-S1800 player. I tried my T5p with the Aurix after dinner, it is not grainy at all. It puzzles...
    Post by: borrego, Feb 13, 2017 in forum: Leaderboard, Overboard, and Deals
  11. borrego
    Post

    Help me with sub $1500 headamps

    I finally received my Metrum Aurix this afternoon. [IMG] Early impression some listening with E-mu Teak, T1, HD6XX and HE500: It is a very...
    Post by: borrego, Feb 13, 2017 in forum: Leaderboard, Overboard, and Deals
  12. borrego
    Post

    Audio-gd NFB-28 Review (w/ Jot+Modi Multibit comparison)

    Mine are just some random adapters PCB I bought from taobao.
    Post by: borrego, Feb 2, 2017 in forum: Headphone Amplifiers and Combo (DAC/Amp) Units
  13. borrego
    Post

    Audio GD Singularity 19 - New R2R DAC

    I really like your post!
    Post by: borrego, Jan 29, 2017 in forum: Digital: DACs, USB converters, decrapifiers
  14. borrego
    Post

    Audio GD Singularity 19 - New R2R DAC

    Exactly. So Ha Ha, now i am officially labelled as a audio-gd fan boy here. Any trophy point for it? I believe I am just presenting facts...
    Post by: borrego, Jan 29, 2017 in forum: Digital: DACs, USB converters, decrapifiers
  15. borrego
    Post

    Audio GD Singularity 19 - New R2R DAC

    I would also suggest you to replace the 4 OPA2134 opamps in the M7 with OPA2140 on SOIC-DIP adaptors. The improvement is in the same magnitude of...
    Post by: borrego, Jan 29, 2017 in forum: Digital: DACs, USB converters, decrapifiers
  16. borrego
    Post

    Audio GD Singularity 19 - New R2R DAC

    And some other "facts" I know about the current audio-gd line of products: 1. The typical parallel JFET cascode output buffers used in their mid...
    Post by: borrego, Jan 29, 2017 in forum: Digital: DACs, USB converters, decrapifiers
  17. borrego
    Post

    Audio GD Singularity 19 - New R2R DAC

    Well, if one finds the current audio-gd PCM1704 DAC pricing not competitive, there is no need to buy it. I for myself bought my audio-gd PCM1704...
    Post by: borrego, Jan 29, 2017 in forum: Digital: DACs, USB converters, decrapifiers
  18. borrego
    Post

    Audio GD Singularity 19 - New R2R DAC

    You should also have stated your experience with the M7 was over 2 years ago back when you were still active in head-fi, and the "firmware...
    Post by: borrego, Jan 29, 2017 in forum: Digital: DACs, USB converters, decrapifiers
  19. borrego
    Post

    Audio GD Singularity 19 - New R2R DAC

    Well, my point is human perception ability and other components (like in the article you also quoted) will be the limitation factor long before...
    Post by: borrego, Jan 28, 2017 in forum: Digital: DACs, USB converters, decrapifiers
  20. borrego
    Post

    Audio GD Singularity 19 - New R2R DAC

    A DAC which is accurate to the 14th MSB would equal to 0.00610352% distortion. Good enough considering the amount of distortions from the other...
    Post by: borrego, Jan 28, 2017 in forum: Digital: DACs, USB converters, decrapifiers
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