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About Kung

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  1. Kung

    The Headcase Stax thread

    bk version sounds similar to the standard SR-009, maybe a little bit more distant and tighter bass due to the new thicker earpads.
  2. Kung

    Blue Hawaii Special Edition

    no servo at all
  3. Kung

    stax t8000 clone (well sorta)

    I have made a t8k input stage board for my bh,with a little bit tweaking,they've been working for 4 months,and T2 input stage can work fine as well. 😁
  4. Kung

    Massdrop Cavalli Tube Hybrid

    chinese bhse from taobao jr audio。。。
  5. Kung

    2SA1968 substitution

    rare and expensive audio equipments are popular in china and people are willing to own a machine like singlepower as their audio collection,and I'm sure vertek now is ready for the copy of headamp's bhse.
  6. Kung

    Constant pressure tube substitution

    the jr audio on taobao? i know you,you're a fan of spritzer.
  7. Kung

    Denafrips DACs

    ‘FOTM’,what's the meaning of that?
  8. Kung

    The Headcase Stax thread

    http://webcache.googleusercontent.com/search?q=cache:_8k5_bjQSfUJ:stax.xsrv.jp/products/sr-009s/+&cd=13&hl=en&ct=clnk&gl=hu SR-009s
  9. I try 02N120P as output fets,this time fr(-3db) can run up to 74Khz,and (-6db) about 114Khz. circuit works much better now.
  10. it's good to see more es amp designs. The thd+n is really low about 0.005% fr(-3db)only reach about 11.6Khz and -6db at 19.9Khz from multisim ac analysis when gain is set at 46db,higher the gain the lower fr will be,not sure the circuit works properly ,btw it's easy to run kgsshv fr(-3db)over 110khz or even higher,and 2nd harmonic distortion of -79db and 3rd harmonic distortion of -61db at 1Khz
  11. Kung

    Blue Hawaii BJT Build thread

    nicely done !
  12. Kung

    The Headcase Stax thread

    rumor from edifier dealer said that sr-009s is ready to launch
  13. Kung

    goldenreference low voltage power supply

    great job! kerry