Anybody using the new ESS Vout DAC (ES9022)?

[EUVL]

I think it already come with a shield ?

See if I can get hold of some. Mouser has no stock.
Unless of course you also have friends at Fastron ??

😉


Patrick

 

[Joachim Gerhard]

This guys deliver in 5-7 days .http://www.x-on.com.au/catresults.asp?c=N-wpcz
The coil you found is shielded, fine, maybe this is the holy grail . 🙂

 

[Joachim Gerhard]

OHHH, they are in Australia, even more mysterious.

 

[TheShaman]

If anyone orders parts do let me know.
Perhaps we can share costs.

 

[EUVL]

Give us a chance to work on it.
If it is worthy we'll make (yet another) add-on module available.


Patrick

 

[TheShaman]

I was actually hoping you'd say that. 😀

 

[woodturner-fran]

Me too!

 

[EUVL]

All very impatient. 🙂

Good to hear from you Fran.
Still enjoying your DAC ?

I think you impressions are very similar to those of Joachim.


Patrick

 

[woodturner-fran]

Yes, still using it, and liking it!

 

[guglielmope]

Hello Patrick,
I'm also very interested in parts for the output stage.
I like very much my ES9023 Dac but at the moment is more precise but a bit more agressive that my AD1865.
Ciao
Guglielmo

 

[EUVL]

Amongst all other things we have to do, 2 of my team are off for Chinese New Year for 3 weeks.
The inductor I found is only available from Mouser and it is on a 5-week delivery.
We still need to make PCB layout, order proto boards, match SOT23 SMD JFETs, ....

So even if I only do this and nothing else, we are talking realistically March / April.
And I am sure you also want us to test and optimise before letting you have it....

So patience. I got the message that there is enough interest.

But very glad to know that more and more finally got the message about the 9022 / 9023. 😉


Patrick

 

[TheShaman]

To be honest, I actually consider selling my main Sabre9018-based DAC and keeping your 9022 as my main source - at least until things settle down and we see more options in the "reference 9018 DIY DAC" arena..
My main setup is balanced end to end so I'll have to temporarily use some CineMag transformers I have laying around for SE-BAL conversion.

 

[jonners]

So patience. I got the message that there is enough interest.

But very glad to know that more and more finally got the message about the 9022 / 9023. 😉


Patrick

Yes, and I will be watching too. 🙂
John

 

[Joachim Gerhard]

This are the 24mH coils that Sowter makes for me. They are wound on a Mumetall core for low distortion. I use them in an inductive RIAA i designed for a German High End company.
Such coils are used in expensive mixing boards and tube equalizers so they have some audio credibility. I will make a filter-buffer board and test this with the EUVL ES9022.
Then i have something to compare with the Faston coils when they arrive.
The resistor to ground before the buffer has to be raised in value in proportion to the higher coil value.

 

[abraxalito]

What's the SRF of those 24mH chokes?

 

[Joachim Gerhard]

Is that the DC impedance ? That is 4 Ohm.

 

[Joachim Gerhard]

Or is that Series Resonant Frequency ?
That is hard to tell. My anti RIIA has a pole over 300kHz and until that point i get accurate tracking.

 

[abraxalito]

No, I was wondering at what frequency it exhibits maximum impedance - before the shunt (stray) capacitance starts to dominate?

<edit> SRF = Self Resonant Freq

 

[Joachim Gerhard]

Ok, later today i will measure again the phono where it is in.
I could also measure inductance directly with a sine wave and scope.

 

[Joachim Gerhard]

I can not find that spec on the Sowter website so i have to measure myself.SOWTER EQ EQUALIZER CHOKES INDUCTORS