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Quanghao Audio Design Quanghao Audio Design is a producer of DIY Audiophile Kits and PCB boards, selected from many listening tests!

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Old 3rd December 2013, 10:01 AM   #201
rowli is offline rowli  Sweden
diyAudio Member
 
Join Date: May 2010
1. adeveza: DAC module + amanero + output stage + transformer (Complete Set: Item 6)
2. papapew: DAC module + amanero + output stage + transformer + chassis
3. smokingdog: DAC module + output stage
4. gde3: DAC module + amanero + transformer
5. villanueva: DAC module + amanero + output stage + transformer (item6)
6. CAAD: output stage only
7. Blackberry: output stage only
8. Mas Penk: DAC module + amanero + transformer + chassis
9. rade95: output stage + chassis
10. vmoreau: DAC Module
11. sandor: Complete DAC without output stage (option 6 without option 2)
12. Erlend Sæterdal: Output stage only
13. claudio52: Output stage only
14. Nick F: Complete DAC exclude output stage (item 6 - item 2)
15. xtomm: output stage only
16. brgds: DAC + output stage + amanero
17. danny_66: output stage only
18. anjogi: amanero + DAC + output stage + transformer
19. Jazzbear: DAC module + output stage + transformer
20. frankwilker: DAC module + Amanero module + output stage
21. NKL: DAC module + Amanero module+output stage+transformer
22. PeterKD: complete DAC (item 6)
23. rredline: Output stage only
24. schallundrauch: complete DAC (item 6)
25. Stenachio: Complete DAC without output stage (option 6 without option 2)
26. ervstil: DAC module + Amanero
27. linuxfan: output stage only
28. msaywitz: AC module + amanero + output stage + transformer + chassis
29. rowli: DAC module + amanero + transformer
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Old 3rd December 2013, 06:00 PM   #202
audiodesign is offline audiodesign  Italy
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Join Date: Sep 2005
Send a message via MSN to audiodesign DAC-END R (ES9018) full assembled board - version 2
1. adeveza: DAC module + amanero + output stage + transformer (Complete Set: Item 6)
2. papapew: DAC module + amanero + output stage + transformer + chassis
3. smokingdog: DAC module + output stage
4. gde3: DAC module + amanero + transformer
5. villanueva: DAC module + amanero + output stage + transformer (item6)
6. CAAD: output stage only
7. Blackberry: output stage only
8. Mas Penk: DAC module + amanero + transformer + chassis
9. rade95: output stage + chassis
10. vmoreau: DAC Module
11. sandor: Complete DAC without output stage (option 6 without option 2)
12. Erlend Sæterdal: Output stage only
13. claudio52: Output stage only
14. Nick F: Complete DAC exclude output stage (item 6 - item 2)
15. xtomm: output stage only
16. brgds: DAC + output stage + amanero
17. danny_66: output stage only
18. anjogi: amanero + DAC + output stage + transformer
19. Jazzbear: DAC module + output stage + transformer
20. frankwilker: DAC module + Amanero module + output stage
21. NKL: DAC module + Amanero module+output stage+transformer
22. PeterKD: complete DAC (item 6)
23. rredline: Output stage only
24. schallundrauch: complete DAC (item 6)
25. Stenachio: Complete DAC without output stage (option 6 without option 2)
26. ervstil: DAC module + Amanero
27. linuxfan: output stage only
28. msaywitz: DAC module + amanero + output stage + transformer + chassis
29. rowli: DAC module + amanero + transformer
30. Claudio M. DAC module + amanero + output stage + LL1684 pcb + transformer
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Old 5th December 2013, 02:32 PM   #203
gjorgji is offline gjorgji  Canada
diyAudio Member
 
Join Date: Feb 2007
Location: Richmond Hill
1. adeveza: DAC module + amanero + output stage + transformer (Complete Set: Item 6)
2. papapew: DAC module + amanero + output stage + transformer + chassis
3. smokingdog: DAC module + output stage
4. gde3: DAC module + amanero + transformer
5. villanueva: DAC module + amanero + output stage + transformer (item6)
6. CAAD: output stage only
7. Blackberry: output stage only
8. Mas Penk: DAC module + amanero + transformer + chassis
9. rade95: output stage + chassis
10. vmoreau: DAC Module
11. sandor: Complete DAC without output stage (option 6 without option 2)
12. Erlend Sæterdal: Output stage only
13. claudio52: Output stage only
14. Nick F: Complete DAC exclude output stage (item 6 - item 2)
15. xtomm: output stage only
16. brgds: DAC + output stage + amanero
17. danny_66: output stage only
18. anjogi: amanero + DAC + output stage + transformer
19. Jazzbear: DAC module + output stage + transformer
20. frankwilker: DAC module + Amanero module + output stage
21. NKL: DAC module + Amanero module+output stage+transformer
22. PeterKD: complete DAC (item 6)
23. rredline: Output stage only
24. schallundrauch: complete DAC (item 6)
25. Stenachio: Complete DAC without output stage (option 6 without option 2)
26. ervstil: DAC module + Amanero
27. linuxfan: output stage only
28. msaywitz: DAC module + amanero + output stage + transformer + chassis
29. rowli: DAC module + amanero + transformer
30. Claudio M. DAC module + amanero + output stage + LL1684 pcb + transformer
31. gjorgji: output stage only
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Old 5th December 2013, 10:27 PM   #204
stenachio is offline stenachio  United States
diyAudio Member
 
Join Date: May 2012
Location: Cascadia
Quote:
Originally Posted by quanghao View Post
List of 30 members. I do not get more!
Thank you all!
This GB appears to be capped at 30. I'm unsure if this applies only to the DAC portion or all components.
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Old 6th December 2013, 06:19 AM   #205
audiodesign is offline audiodesign  Italy
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Join Date: Sep 2005
Send a message via MSN to audiodesign DAC-END R (ES9018) full assembled board - version 2
Only 21 are the DAC modules and 23 are the output stage until now.
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Old 6th December 2013, 12:15 PM   #206
ceausuc is offline ceausuc  Romania
diyAudio Member
 
Join Date: Dec 2008
1. adeveza: DAC module + amanero + output stage + transformer (Complete Set: Item 6)
2. papapew: DAC module + amanero + output stage + transformer + chassis
3. smokingdog: DAC module + output stage
4. gde3: DAC module + amanero + transformer
5. villanueva: DAC module + amanero + output stage + transformer (item6)
6. CAAD: output stage only
7. Blackberry: output stage only
8. Mas Penk: DAC module + amanero + transformer + chassis
9. rade95: output stage + chassis
10. vmoreau: DAC Module
11. sandor: Complete DAC without output stage (option 6 without option 2)
12. Erlend Sæterdal: Output stage only
13. claudio52: Output stage only
14. Nick F: Complete DAC exclude output stage (item 6 - item 2)
15. xtomm: output stage only
16. brgds: DAC + output stage + amanero
17. danny_66: output stage only
18. anjogi: amanero + DAC + output stage + transformer
19. Jazzbear: DAC module + output stage + transformer
20. frankwilker: DAC module + Amanero module + output stage
21. NKL: DAC module + Amanero module+output stage+transformer
22. PeterKD: complete DAC (item 6)
23. rredline: Output stage only
24. schallundrauch: complete DAC (item 6)
25. Stenachio: Complete DAC without output stage (option 6 without option 2)
26. ervstil: DAC module + Amanero
27. linuxfan: output stage only
28. msaywitz: DAC module + amanero + output stage + transformer + chassis
29. rowli: DAC module + amanero + transformer
30. Claudio M. DAC module + amanero + output stage + LL1684 pcb + transformer
31. gjorgji: output stage only
32. ceausuc: Amanero
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Old 6th December 2013, 12:17 PM   #207
ceausuc is offline ceausuc  Romania
diyAudio Member
 
Join Date: Dec 2008
Would be possible to use the dac without the output stage? Besides the fact that the gain is very low... could be damaged in any way?
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Old 6th December 2013, 01:13 PM   #208
ervstil is offline ervstil
diyAudio Member
 
Join Date: Apr 2013
No, it would not hurt the dac. The dac chip has built in series resistors that should keep it safe from shorts. Be aware that there will be 1.65V offset that needs to be handled. There will also be some out of band noise. If your amplifier has very high bandwidth and/or marginal stability this has to be managed as well.

There are some good reading in this blog entry: How Good is ES9018 in Voltage Mode? (Part II) | H i F i D U I N O

There are also some entries in "DAC-END R (ES9018) full assembled board"

Best Regards Christian
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Old 6th December 2013, 04:00 PM   #209
Erlend Sæterdal is offline Erlend Sæterdal  Denmark
diyAudio Member
 
Join Date: Mar 2007
DAC-END R (ES9018) full assembled board - version 2
Quote:
Originally Posted by ceausuc View Post
Would be possible to use the dac without the output stage? Besides the fact that the gain is very low... could be damaged in any way?
I did but it is much better with transformers.
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Old 6th December 2013, 05:01 PM   #210
ceausuc is offline ceausuc  Romania
diyAudio Member
 
Join Date: Dec 2008
thank you!
it's just that i can't afford at the moment also the transformers...
is there going to be a third group buy?
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