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REVIEW: HLLY DMK-IV DAC / headphone amp / pre-amp)

Discussion in 'Dedicated Source Components' started by skylab, Jan 25, 2010.
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  1. mrarroyo Contributor
    David sorry for the late reply, PM sent with my contact information. Thanks.
     
  2. Who?
    That looks like a reasonable price. Looking forward to your impressions mrarroyo!
     
  3. bearmann
    Looks interesting so far... :)
     
    Just a few questions:
     
    • Is the volume control analog or digital (hopefully digital because of the non-ALPS Blue pot)
    • What did you use as output transistors for the headphone amp? (I imagine that's an class AB buffer?!)
    • Is the headphone amp dc-coupled?
    • Do the LEDs at the front just show the actual sample rate or is there an additional ASRC inside the SMK-III?
     
    Thanks and regards.
    bearmann
     
  4. thangcoo
    The new DAC looks great! Looking forward to Miguel's review too.
     
  5. david-gao


     
    Quote:


    Hello:
     1.  the volume is analog, not digital!
     2.  Yes, it is class AB buffer circuit for the headphone amp!
     3.  Yes, headphone amplifer DC-Coupled!
     4.  The LEDs at the front just show the actual sample rate!
     
    Over!
    Thanks
     
  6. mrarroyo Contributor
    Waiting ... still waiting... [​IMG] I am not very good at this waiting thing. [​IMG]
     
    David once again I thank you for the opportunity.
     
  7. leeperry

    very nice! rollable opamps apparently? for both the DAC I/V and headphones amp?
     
    you could have added a WM8804 reclocker on all inputs via I2S to provide lower jitter, like in the Neko DA100 DAC and the Firestone BRAVO transport.
     
    the 110/220V switch looks very dangerous to me, too easy to switch it by mistake and watch the unit melt IMHO.
     
  8. Mad Max
    You can't just put tape over that switch? lol
     
  9. bearmann


    Quote:

    I second that. A smaller switch would've been better ... regardless of any tape action somebody might want to do.
     
  10. Mad Max


    Quote:

    Fine, epoxy putty.
     
  11. david-gao
    Hello:
     
        The switch on the back panel is power switch, not 110/220V switch!
        We will ship the DAC according to the country, if for USA/Canada/ Japan, we will ship 110V Version, if for Australia / Europe we will ship the 230V Version!
     
        Do do not worry about the switch, it is power switch!
     
    -- David gao
     
  12. david-gao


     
    Quote:

    Dear Miguel, the package is on the way to you now, EMS Express and the tracking number is EE425604153CN , you can tracking it in www.usps.com
    We also send the AMK-II pre amplifier in the package!
     
    Regards
     
      David gao
     
     
  13. Mad Max
    I think that last post should have been a private message.
     
    So it's the power switch. The labeling there is a bit misleading, maybe you should have a blank space there and print/write in manually if the unit is 110V or 230V.
     
  14. fglx
    I would still be interested in a statement from david with respect to the advertised 24/96 capability of the DMK-IV which the actual units do not seem to support producing only static noise when fed such source material.
     
  15. mrarroyo Contributor


    Quote:

    Thanks for the information David. I have checked with US Postal Service and ...
     
    Detailed Results:
    [​IMG] [​IMG]
    [​IMG] Inbound International Arrival, August 24, 2010, 2:45 am, ISC NEW YORK NY(USPS)
    [​IMG] Foreign International Dispatch, August 22, 2010, 12:24 am, SHANGHAI EMS, CHINA PEOPLES REP
    [​IMG] Foreign Acceptance, August 21, 2010, 6:55 pm
    [​IMG] Origin Post is Preparing Shipment

     
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