• Disclaimer: This Vendor's Forum is a paid-for commercial area. Unlike the rest of diyAudio, the Vendor has complete control of what may or may not be posted in this forum. If you wish to discuss technical matters outside the bounds of what is permitted by the Vendor, please use the non-commercial areas of diyAudio to do so.

DAC-END R (ES9018) full assembled board

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
Jump to Latest
H

Halook

Member
Joined 2009
DAC shield
Material: Copper-Nickel-Zinc alloy C7521
added myself for the shield:

1. sipo75
2. Domi_78
3. bobkojek
4. Erlend Sæterdal
5. danielkol*2
7. kmajjo * 6
8. xtomm
9. MattMax
10. Gricko
11. Luizl
12. Misterrogers
13. randytsuch
14: CAAD
15: glt
16: axeexa(antony_shih)
17: bertchai
18: TarnishedEars
19: smoothquark (with complete DAC)
20: rliyung/raoul
21: masterkey (with complete DAC)
22: danny_66
23: yildiray
24: Boxi80
25: halook
 
D

Domi_78

Member
Joined 2008
Hi Halook, Quanghao and Danny_66,
Halook said:
I gave up using the coaxial input. USB works fine for all frequencies including DSD playback via Win7+JRiver or Win8+Jriver.:cheeky:
Click to expand...

- Finaly, via XP+Jriver, my USB Amanero board also works fine with the DAC for all these frequencies : 44.1Khz (44), 48Khz, 88.2Khz (88), 96Khz (95), 192Khz (191) and 352.8Khz (352), (displayed frequency).
- Did not try 176.4Khz and 384Khz but I am confident...

- The problem is that all my music is served via a SqueezeBox Touch. So I absolutely need this DAC locks up to 192 KHz on coaxial or AES/EBU inputs.

Thank you for your help.
 
Last edited:
kgkim

kgkim

Member
Joined 2011
diymania.net
DAC shield
Material: Copper-Nickel-Zinc alloy C7521
added myself for the shield:

1. sipo75
2. Domi_78
3. bobkojek
4. Erlend Sæterdal
5. danielkol*2
7. kmajjo * 6
8. xtomm
9. MattMax
10. Gricko
11. Luizl
12. Misterrogers
13. randytsuch
14: CAAD
15: glt
16: axeexa(antony_shih)
17: bertchai
18: TarnishedEars
19: smoothquark (with complete DAC)
20: rliyung/raoul
21: masterkey (with complete DAC)
22: danny_66
23: yildiray
24: Boxi80
25: halook
26: kgkim * 6

Thanks
 
R

randytsuch

Member
Joined 2003
randytsuch-audio.blogspot.com/2005/10/my-system.html
Domi_78 said:
Hi Halook, Quanghao and Danny_66,

- The problem is that all my music is served via a SqueezeBox Touch. So I absolutely need this DAC locks up to 192 KHz on coaxial or AES/EBU inputs.

Thank you for your help.
Click to expand...

Did you try the toslink out of the touch?
Other than USB, Toslink is the only other input I tried, and it works for me at 44 and 96.
 
R

rredline

Member
Joined 2004
DAC shield:

1. sipo75
2. Domi_78
3. bobkojek
4. Erlend Sæterdal
5. danielkol*2
7. kmajjo * 6
8. xtomm
9. MattMax
10. Gricko
11. Luizl
12. Misterrogers
13. randytsuch
14: CAAD
15: glt
16: axeexa(antony_shih)
17: bertchai
18: TarnishedEars
19: smoothquark (with complete DAC)
20: rliyung/raoul
21: masterkey (with complete DAC)
22: danny_66
23: yildiray
24: Boxi80
25: halook
26: kgkim * 6
27. rredline
 
L

la1209

Member
Joined 2006
DAC shield:
1. sipo75
2. Domi_78
3. bobkojek
4. Erlend Sæterdal
5. danielkol*2
7. kmajjo * 6
8. xtomm
9. MattMax
10. Gricko
11. Luizl
12. Misterrogers
13. randytsuch
14: CAAD
15: glt
16: axeexa(antony_shih)
17: bertchai
18: TarnishedEars
19: smoothquark (with complete DAC)
20: rliyung/raoul
21: masterkey (with complete DAC)*
22: danny_66
23: yildiray
24: Boxi80
25: halook*
26: kgkim * 6
27. rredline**
28. la1209
 
kgkim

kgkim

Member
Joined 2011
diymania.net
Running ES9018 DAC on first stage

Hi Quanghao,

Yes, I've made two your ES9018 DAC kits.
I've joined a DIYMania.NET which are the amateur community for DIY audio in Korea.
You can find the first one that discuss this:
http://diymania.net/bbs/board.php?bo_table=pj_ES9018&wr_id=3
I'm sorry for being Korean article only, but you'd be simply understand all.
The sound is vey good : well balanced, many information in music.

I also found some problem in your DAC kits.
- SPDIF input is not working with my CD transport using CD-PRO2 module
- when select the button in display PCB, it may not work normally due to chattering
- the output gain is small compared by common audio product.

SPDIF problem: https://www.dropbox.com/s/zx6o0fhlt2liw66/spdif-problem.png
(I hope that you would be look over spdif input schematic again)


The second one:
http://diymania.net/bbs/board.php?bo_table=pj_ES9018&wr_id=13
http://diymania.net/bbs/board.php?bo_table=pj_ES9018&wr_id=18

I added I/V output stage + input transformer + my buffer module + output transformer.
- iv opamp : ad797 dual(first stage) , opa134 dual (second stage)
- line input transformer : maded by pikatron (it obtained from pro audio console^^)
- line output transformer : not known (it also obtained from pro audio console)

The sound is better than first one : it's more natural sound^^

Thank you Quanghao and Andrea for this nice project.

Regards,
David Kim.

 
Last edited:
K

kimgiin

Member
Joined 2007
DAC shield:
1. sipo75
2. Domi_78
3. bobkojek
4. Erlend Sæterdal
5. danielkol*2
7. kmajjo * 6
8. xtomm
9. MattMax
10. Gricko
11. Luizl
12. Misterrogers
13. randytsuch
14: CAAD
15: glt
16: axeexa(antony_shih)
17: bertchai
18: TarnishedEars
19: smoothquark (with complete DAC)
20: rliyung/raoul
21: masterkey (with complete DAC)*
22: danny_66
23: yildiray
24: Boxi80
25: halook*
26: kgkim * 6
27. rredline**
28. la1209
29. kimgiin
 
R

randytsuch

Member
Joined 2003
randytsuch-audio.blogspot.com/2005/10/my-system.html
kgkim said:
Hi Quanghao,


I also found some problem in your DAC kits.
- SPDIF input is not working with my CD transport using CD-PRO2 module

SPDIF problem: https://www.dropbox.com/s/zx6o0fhlt2liw66/spdif-problem.png
(I hope that you would be look over spdif input schematic again)

Regards,
David Kim.
Click to expand...

I think you found the SPDIF problem that people are having, 10uf is too big a cap, takes too long to charge, which is why the pulses look like that in (3).

Thanks for figuring this out.
I bet if people change that cap to a 0.1 like you recommend, all would be well.

Did you change the cap, and try it again?

Randy
 
quanghao

quanghao

Member
Joined 2009
quanghao.com/
Welcome to you!.

all you broken chasis and board IV, I will send you one of the damaged components. I'm waiting for the shield, a few days it will be to me.

I will send for you soon! Please be understanding and wait!

Thank you very much! And look forward to ignore failures, errors transporting this!

All of the damage caused by shipping, I will not be compensated Fedex, so I declare very low value to avoid the import tax for you!
 
D

Domi_78

Member
Joined 2008
Hi Randy,
randytsuch said:
I think you found the SPDIF problem that people are having, 10uf is too big a cap, takes too long to charge, which is why the pulses look like that in (3). Thanks for figuring this out. I bet if people change that cap to a 0.1 like you recommend, all would be well. Did you change the cap, and try it again?Randy
Click to expand...

Maybe I am wrong...
The two concerned caps are serigraphied C35 (AES/EBU input) and C36 (Coaxial input) and C7 on the schematic :
- These caps are not soldered on the PCB and they are replaced by a strap :scratch1:.
 

Attachments

  • C35.jpg
    C35.jpg
    85.8 KB · Views: 320
  • C36.jpg
    C36.jpg
    94.4 KB · Views: 308
  • Schematic C7.jpg
    Schematic C7.jpg
    18.4 KB · Views: 308
Last edited:
R

randytsuch

Member
Joined 2003
randytsuch-audio.blogspot.com/2005/10/my-system.html
Domi_78 said:
Hi Randy,


Maybe I am wrong...
The two concerned caps are serigraphied C35 (AES/EBU input) and C36 (Coaxial input) :
- These caps are not soldered on the PCB and they are replaced by a strap :scratch1:.
Click to expand...

I'm at work now, and from here I can't look at the dropbox files, and I definitely can't look inside my DAC.

Are you saying that instead of C36, there is a wire?
From what I remember, that would short the signal to ground. If that is the case, it definitely won't work.

Try removing the wire?
I think it would work with no cap installed, although it is probably better to have a small cap for filtering in that position.

Randy
 
R

randytsuch

Member
Joined 2003
randytsuch-audio.blogspot.com/2005/10/my-system.html
Domi_78 said:
Hi Randy,
- I have attached some pictures to my previous post.
Click to expand...

:confused:

I thought it was a filter cap, but it's not.
Looks like they made provisions for a cap in case it was required, but then they decided it was not required?

To add a cap, you would need to cut the trace.

What does the "working" circuit look like, in comparison?

BTW, are you able to try toslink, at least to see if that works.
 
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
Top Bottom