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Old 2nd January 2010, 09:42 PM   #31
jkeny is offline jkeny  Ireland
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Hi Spartacus,
I tried ordering an ESS9022 from them months back & they didn't have any in stock & didn't get back to me about ordering in - I eventually ordered them through Ismosys but find their postage charges high.
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Old 12th January 2010, 05:57 PM   #32
EUVL is offline EUVL  Europe
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I thought I should put this on record :

FAA, alias Arvin, asked me to get 100 pcs ES9022 for him. I got a quote from ismosys, together with some stuff that I wanted. He then asked me for a copy for the data sheet. I got mine under NDA, so I got him in direct contact with Olaf of ismosys. Olaf has not heard from Arvin since. In the meantime, I purchased my own requirements online at the ismosys site.

As such, I have no further dealings with FAA (Arvin) regarding ESS DACs, or else.


Patrick
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Old 13th February 2010, 07:24 PM   #33
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Quote:
Originally Posted by jkeny View Post
Hi Spartacus,
I tried ordering an ESS9022 from them months back & they didn't have any in stock & didn't get back to me about ordering in - I eventually ordered them through Ismosys but find their postage charges high.
How does ordering through Ismosys work?? I registered an account, and for shipping options, it has a customer shipping option to enter a courier and account . How high was shipping for you, and how would i get a shipping quote before paying?

- Calvin
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Old 20th February 2010, 06:12 PM   #34
EUVL is offline EUVL  Europe
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So I finally got my ES9022 going.
Oh, God. How nice !!!

I have been listened for four hours, and I still cannot decide whether it is better or worse than my (not too exotic) reference -- Meridian 508 modified.
It has better sound stages, but perhaps a tinny bit less sweet. Maybe I should play with the output filter a bit more.
For the money, it is unbeatable.

Photos tomorrow, if the sun comes out.

All credits to John for the tip.


Patrick

PS I did not follow the datasheet straightly, as you would expect from me.

.

Last edited by EUVL; 20th February 2010 at 06:15 PM.
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Old 20th February 2010, 06:27 PM   #35
jkeny is offline jkeny  Ireland
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I told you Patrick - this DAC is a value for money find - not the best DAC in the worls spec-wise but it's sweet sounding nonetheless. Even sweeter when plugged into a modified HiFace USB 24/192 transport via I2S & driving headphones for instance

Let us know how you differed from the datasheet - I did too
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Old 20th February 2010, 07:04 PM   #36
jkeny is offline jkeny  Ireland
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BTW, no need for an output filter - just go straight out to amplifier!
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Old 21st February 2010, 08:08 AM   #37
EUVL is offline EUVL  Europe
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Only you and I interested in the ES9022 ?
What a pity. They don't know what they are missing.

Patrick
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Old 21st February 2010, 09:15 AM   #38
EUVL is offline EUVL  Europe
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Someone PM'ed me and asked a couple of technical questions about the chip.
There is next to no details in the datasheet other than the pin assignment and a typical application schematics.

For the little extra that I know, I am under NDA.
If you want to find out more, please contact your local agent and ask them to ask ESS.
That is how they want it, so that is how it has to be.

Anyone can afford the price of an ES9022, so there is no reason not to experiment.
Considering some of the effort that went into a TDA1543, I am sure this also deserves the same.


Patrick
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Old 21st February 2010, 10:53 AM   #39
jkeny is offline jkeny  Ireland
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Yes, Patrick,
They don't know what they're missing but I've seen some people raving about what this DAC has to offer - the users of NuForce uDac USB/headphone DAC which uses a ES9022 FIRST IMPRESSIONS: Nuforce uDAC USB DAC AMP with line out and S/PDIF out - Head-Fi: Covering Headphones, Earphones and Portable Audio

I've been asking there & here about the innards of this uDac but nobody is interested.

BTW, do you have the ESS application note for this ES9022 - email me & I'll send it to you.
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Old 21st February 2010, 02:26 PM   #40
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Quote:
Originally Posted by EUVL View Post
Only you and I interested in the ES9022 ?
What a pity. They don't know what they are missing.

Patrick
The ES9022 looks like a good chip to compare against the work that I've done with the WM8524:

The GrubDAC - Head-Fi: Covering Headphones, Earphones and Portable Audio

That being said, for me, dealing with the NDA seems like a big hurdle. I'd rather make a board that a diy'er could get all the parts themselves.
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