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Old 5th June 2012, 11:39 AM   #101
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Any way i can add tubes to the DAC?
I know that it needs no I/V stage, but i like tube sound.
Any ideea is welcomed.
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Old 5th June 2012, 11:50 AM   #102
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There are no tube substitutes for WM8804 and ES9023

ES9023 needs no tube output stage unless you want coloured sound but then you could have used any other DAC. It has an opamp output stage already. Adding unneccessary stuff simply is adding unneccessary stuff. This DAC is very neutral with no harsh highs etc. I would strongly advise to first use the DAC as intended and after thorough evaluation decide on investing in adding extra stuff. I can only think of the filter Joachim Gerhard designed as a useful extra.

Since it has 2V output you could connect it via a 50 k potentiometer to a tube power amp if you like tube sound .....
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Last edited by jean-paul; 5th June 2012 at 12:08 PM.
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Old 5th June 2012, 01:31 PM   #103
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Out of 10 DAC's one will be sacrificed for experimets .
But the rest will be exactly as planned for shure!
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Old 5th June 2012, 02:12 PM   #104
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All -

Updated GB List with errors fixed.

-Subbu
Attached Files
File Type: pdf ES9023 DAC PCB Group Buy - Final Updated.pdf (44.0 KB, 91 views)
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Old 5th June 2012, 04:37 PM   #105
Frex is offline Frex  France
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Hello,

Does anyone have made THD spectrum measurement on the ES9023 DAC ?
It exist many thread about ESS Sabre DAC, but it seem that nobody has been
interested to do that.
Sure that i will do this as soon my DAC board will be mounted..

Oups ! finally, i've find this THREAD.

Frex

Last edited by Frex; 5th June 2012 at 04:41 PM.
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Old 5th June 2012, 10:09 PM   #106
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Quote:
Originally Posted by jean-paul View Post
Using the parts in the BOM will save us from a lot pages solving possible issues. I think that is the reason BOMs are made.

Be glad you have Digikey over there and just order the parts there.
Good point. I don't want to be a troublemaker I'll just order the parts in the BOM from Digi-Key.

Quote:
Originally Posted by rvrazvan View Post
Any way i can add tubes to the DAC?
I assume that's a joke, right?
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Old 6th June 2012, 10:05 PM   #107
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Not really a joke )!
I like tubes. That's all.
Click the image to open in full size.
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Old 7th June 2012, 05:20 AM   #108
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Can I use WM8804 and ES9023 in those
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Old 7th June 2012, 07:32 AM   #109
massimo is offline massimo  Italy
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Subbu, JeanPaul, are you going to provide a schematic after the bom?
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Old 7th June 2012, 09:08 AM   #110
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Quote:
Originally Posted by rvrazvan View Post
Not really a joke )!
I like tubes. That's all.
Click the image to open in full size.
Thats a really odd looking dac chip. Are you sure they meet manufacturer specs.
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