Audio-GD DI-20
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DACLadder

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I just found 3.993 this morning with no explanation other than here it is and give it a try. SPDIF input is an issue on some DI's so will try that this morning with 3.993.

Kingwa released yesterday's 3.99 on the AGD web site.
http://www.audio-gd.com/Firmwaredownload.htm
 
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jimmychan

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Version 3.99 at least has issue on my two DIs. SPDIF in no sound. Version 3.93 is normal.
 
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I think 3.993 is just bug fix attempts perhaps. Kingwa just said "here it is and give it a try".

SPDIF input in parallel mode has always been an issue on my DI20HE. Switching to serial seemed more stable. 3.99 played OK (parallel mode) with only two minor dropouts in 2 hrs of testing. 3.993 SPDIF input parallel mode does play on my DI20HE (parallel mode) so will run this for several hours to test. I have the Singxer SU-1 drving SPDIF input.
 
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Oepsie

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I’m on 4,5 weeks burn in and my unit (90/98 version) has taken a big step forward from being somewhat edgy with (too much) openness in the midrange (resulting i mild ear pains after 10 minutes of listening) towards a much more balanced and natural presentation with the bass impact being slighty less (in a good way as it was too much before).

It is quite strange how the sound changes during burn in. Hoping so much that this is a permanent step in the right direction and that the edgyness will be gone permanently.. fingers crossed :)
 
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DACLadder

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@Oepsie Yes it does take a while to burn in. Probably 700 - 1000 hrs. Good things will evolve slowly.
 
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Wynnytsky

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with the bass impact being slighty less (in a good way as it was too much before).
...
and that the edgyness will be gone permanently.. fingers crossed :)
oh I remember the first couple of days when the bass was overblown (or more likely my treble didn't wake up yet)

What's your DAC?
 
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Oepsie

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An electrocompaniet ecd-1. So an old one with little filtering..
 
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I’m enjoying 3.993 f/w. USB in/ I2S out/ parallel mode, int. or ext. clock. I’m getting much less grain/ glare. First thought the f/w had less highs but it is just less junk. More depth... spooky compared with 3.99 yesterday. Large space. Bass is thundering as well. Worth a try if curious!
 
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Wynnytsky

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I don't know what it's like for others but when I engage my clock (w/ di20he 3.993 only) the dynamics rise to the point where I think I'm listening to a delta sigma dac. Though it's a little drier, it doesn't exhibit that hard+thin sound that is so typical of delta sigma implementations.
 
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FredA

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Yes, i think i prefered 3.99. Or 3.98. Good sound with 3.993 but i could use some syrup. Some meat. Bacon in maple syrup, just bits. And just a little syrup.
 
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