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Old 18th November 2013, 07:54 AM   #111
anjogi is offline anjogi  Germany
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Join Date: Nov 2013
Quote:
Originally Posted by audiodesign View Post
DO your Audio Note DAC 2 use the PCM63 chips and 6922 SRPP like this ?

http://www.audiofaidate.org/uploaded...dio%20note.gif

Good Morning Andrea,

so far i can see this is the right thing. The PDC63P and Yamaha receiver, df1700, srpp 6922 are all the same. Only mine is not the signature.

If this would function, i am the next to subscribe.

thanks
jogi
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Old 18th November 2013, 05:06 PM   #112
papapew is offline papapew  United States
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Join Date: Aug 2012
Make sure to include a chassis for me (added to list)
Thanks!

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
5. villanueva: DAC module + amanero + output stage + transformer (item6)
6. MattMax: output stage only
7. CAAD: output stage only
8. blackberry: output stage only
9. Mas Penk: DAC module + amanero + output stage + transformer + chassis
10. rade95: output stage + chassis
11. vmoreau : DAC Module
12. edbk : Complete dac (item 6) (tested before shipping please )
13. sandor: Complete DAC without output stage (option 6 without option
14. Erlend Sæterdal: Output stage only.
15. Colesey : complete dac (item 6) in silver please
16. claudio52: Output stage only
17. Nick F: Complete DAC (item 6)
18. xtomm: output stage onl
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Old 18th November 2013, 08:21 PM   #113
audiodesign is offline audiodesign  Italy
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Send a message via MSN to audiodesign DAC-END R (ES9018) full assembled board - version 2
Quote:
Originally Posted by anjogi View Post
Good Morning Andrea,

so far i can see this is the right thing. The PDC63P and Yamaha receiver, df1700, srpp 6922 are all the same. Only mine is not the signature.

If this would function, i am the next to subscribe.

thanks
jogi
You SRPP 6922 output stage is not a differential stage so you should use a transformer like the LL1684 or cheaper type to convert the ES9018 outputs to un-balanced before to connect your output stage.

Last edited by audiodesign; 18th November 2013 at 08:23 PM.
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Old 18th November 2013, 08:59 PM   #114
anjogi is offline anjogi  Germany
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Join Date: Nov 2013
Hallo,

Thank you for the answer. Do i understand right, that it is because the signal in the AN-DAC is at any state signal to ground. In the ESS output it is separated and cannot be put against Gnd without a decoupling transformer. Then i would have 2 transformers in the signal path. Does this make sense? I first thought that a new digital section with the tube output would be fine. Until now i am very satisfied with the AN-sound and thought this is particular due to the tube stage. But the limitation to 16/48 in 2013 is not the greatest hit.

Would it make more sense to take your analog stage?

thank you
jogi
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Old 18th November 2013, 10:21 PM   #115
rredline is offline rredline  Singapore
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Join Date: Oct 2004
Regarding the output stage, based on my humble understanding, your design is like this:

ES9018 V-out > Discrete V/I > I Amplication > Discrete I/V > MOSFET Class A ouput.

Am I right?
I'm wondering why don't design like this:

ES9018 I-out > I Amplication (like SATRI circuits, which I like very much!) > Discrete I/V > MOSFET Class A ouput.

BTW, what is the purpose of the OPA2134?

I really like the headphone-friendly output design!

Thanks.
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Old 19th November 2013, 05:55 PM   #116
brgds is offline brgds  Poland
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Join Date: Apr 2006
Location: Poland
Make sure to include a chassis for me (added to list)
Thanks!

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
5. villanueva: DAC module + amanero + output stage + transformer (item6)
6. MattMax: output stage only
7. CAAD: output stage only
8. blackberry: output stage only
9. Mas Penk: DAC module + amanero + output stage + transformer + chassis
10. rade95: output stage + chassis
11. vmoreau : DAC Module
12. edbk : Complete dac (item 6) (tested before shipping please )
13. sandor: Complete DAC without output stage (option 6 without option
14. Erlend Sæterdal: Output stage only.
15. Colesey : complete dac (item 6) in silver please
16. claudio52: Output stage only
17. Nick F: Complete DAC (item 6)
18. xtomm: output stage onl
19. brgds: DAC + output stage + amanero
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Old 19th November 2013, 07:13 PM   #117
danny_66 is online now danny_66  Belgium
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Join Date: Jun 2005
Location: Lierde
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
5. villanueva: DAC module + amanero + output stage + transformer (item6)
6. MattMax: output stage only
7. CAAD: output stage only
8. blackberry: output stage only
9. Mas Penk: DAC module + amanero + output stage + transformer + chassis
10. rade95: output stage + chassis
11. vmoreau : DAC Module
12. edbk : Complete dac (item 6) (tested before shipping please )
13. sandor: Complete DAC without output stage (option 6 without option
14. Erlend Sæterdal: Output stage only.
15. Colesey : complete dac (item 6) in silver please
16. claudio52: Output stage only
17. Nick F: Complete DAC (item 6)
18. xtomm: output stage onl
19. brgds: DAC + output stage + amanero
20. danny_66: output stage only
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Old 20th November 2013, 06:38 AM   #118
blackberry is offline blackberry  Denmark
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Join Date: Dec 2009
Location: Ruten 63 1 th 2700 Brønshøj
Quote:
Originally Posted by quanghao View Post
Yes, it is bad,

but that demo, it will be real silver!

Do not worry!
Hi quanghao how much for outputstages +frontplate in silver from version 1, and delivery to Denmark, can you send me a pm, for the total price. Thank you.
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Old 20th November 2013, 09:50 PM   #119
ervstil is offline ervstil
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Join Date: Apr 2013
Hi!

I'm in the process of selecting a high quality dac and i have some questions.

- Can some one give me a hint of the quality of this one. Is it good value for the money? How does it compare with the buffalo?

- I'm thinking of running the dac voltage out, the a and b dac parallel and in phase via a high pass filter to a single ended output without any transformer. That would just give me 1 v ouput, but I think it would give me enough level in my set up. Is this a good or bad idea?

- How good is the digital volume control compared to an analogue one? I'm thinking of skipping the preamp and running it directly to the amp. Is this a good or bad idea?

Best Regards Christian
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Old 21st November 2013, 07:46 AM   #120
quanghao is offline quanghao  Viet Nam
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Join Date: Sep 2009
Location: Vietnam
Send a message via Yahoo to quanghao DAC-END R (ES9018) full assembled board - version 2
This layout is designed for DAC-End R V2.0
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