Audio-GD DI-20
Nov 12, 2020 at 6:40 PM Post #2,491 of 5,348
this is the spec for the battery Y USB cable, going for 6xx $ on th ebay:
Technical characteristics:



Conductor Section the cable contains 4 section of total 18 AWG litz wire:



Section A : 18 AWG of 1 mm

Section B: 18 AWG mixed of 0.2 mm, 0.3 mm, 0.5 mm





Section C : 18 AWG of 1 mm Section D: 18 AWG mixed of 0.2 mm, 0.3 mm, 0.5 mm





• Power conductor: Pure Copper 6N 99,9999%

• Section: 2.5 mm / 13 AWG x 2



• Inner Insulation: Teflon tube / Cotton sleeve

• Outer insulation Special-grade high-density polyethylen


• Quarter layer shield 4 x thick pure copper braid

• Connectors: Silver-plated USB series Connectors
 
Nov 14, 2020 at 1:23 PM Post #2,492 of 5,348
Once happily set my DI20HE with 3.993 fw, and lived with total satisfaction with my auralic streamer feeding it via USB, I2S out to R7HE for long weeks, today I put a cd in my audio note AN CDT2 (rca output to DI20HE) and it produced a horribly distorted digital sound.
Fear...is my beloved cd broken?!? Naah...I switched the cable directly to the DAC and everything works fine.
So I'm starting to suspect that "that" firmware can have some problem on s/pdif input. Anyone had similar problems? I will revert to some of 4.07x family fw to try, maybe tomorrow...
 
Nov 14, 2020 at 2:27 PM Post #2,493 of 5,348
Once happily set my DI20HE with 3.993 fw, and lived with total satisfaction with my auralic streamer feeding it via USB, I2S out to R7HE for long weeks, today I put a cd in my audio note AN CDT2 (rca output to DI20HE) and it produced a horribly distorted digital sound.
Fear...is my beloved cd broken?!? Naah...I switched the cable directly to the DAC and everything works fine.
So I'm starting to suspect that "that" firmware can have some problem on s/pdif input. Anyone had similar problems? I will revert to some of 4.07x family fw to try, maybe tomorrow...
I have glitches. Very good sound but popping noises every 3 minutes. I notified Kingwa.
 
Nov 14, 2020 at 3:01 PM Post #2,494 of 5,348
I have the same issue since I got the Di20. Spdif to i2s has no sound under 3.99, 4.07beta and new 4.076. works with noise under 3.93 and new 3.993. it works under 3.32 and 4.075 without issue. For the USB to i2s the 4.076 has the best sound in my system, the second is 3.993. Now, I start to rip all my CD collection to digital, it's a hard job.

I hope Kingwa will still work on the firmware to fix this issue.
 
Nov 14, 2020 at 4:32 PM Post #2,495 of 5,348
I have the same issue since I got the Di20. Spdif to i2s has no sound under 3.99, 4.07beta and new 4.076. works with noise under 3.93 and new 3.993. it works under 3.32 and 4.075 without issue. For the USB to i2s the 4.076 has the best sound in my system, the second is 3.993. Now, I start to rip all my CD collection to digital, it's a hard job.

I hope Kingwa will still work on the firmware to fix this issue.
The more people complain, the better the chances he fixes it soon. 3.933 is a popular choice.
 
Nov 14, 2020 at 5:39 PM Post #2,497 of 5,348
I'm afraid not many people still use a cd player to feed DI-20...ripping is easy but time consuming.
Funny that working hard with a lot more complex and critical connections, super high resolution, and with the results that all of us know...the simple 16/44.1 spdif has issues! I really hope Kingwa will fix it.
Well, I'm sure he will.
 
Nov 15, 2020 at 2:32 AM Post #2,498 of 5,348
I'm afraid not many people still use a cd player to feed DI-20...ripping is easy but time consuming.
Funny that working hard with a lot more complex and critical connections, super high resolution, and with the results that all of us know...the simple 16/44.1 spdif has issues! I really hope Kingwa will fix it.
Well, I'm sure he will.
I am using both DI20 input and i2s n aes output. No problems.
Use only rotel cdp coax out to di20. Sounds better than direct to dac. No problem for 3.933,4.075 n 4.076, all parallel mode. No prblem also for 12s.

Earlier there are when in serial mode, now no more. Maybe due to burn in and serial mode. Now i don use serial only parallel.

Hope it helps.
 
Nov 15, 2020 at 7:53 AM Post #2,499 of 5,348
s/pdif is likely much harder to get right due to it's age and it's handicaps due to that age in the 'modern world electronics".

At the moment the DIY USB cable is breaking in, sounds promising without any shielding for now.
 
Last edited:
Nov 16, 2020 at 11:00 AM Post #2,505 of 5,348
I hear. The computer really makes a difference though.

I just went through my mac mini and cut several processes which slow down the computer and it resulted in a substantially more transparent sound. I was amazed how much of a difference it could make and I keep thinking to myself- if I had a computer which cut pretty much every cpu hogging process- I bet sonic improvement would be great.

A computer is just not ideal because the operating system is getting in the way.
 

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