ES9038Q2M Board

you wrote there was psu on the board, so I only need 1 torroidal +18/-18V(or +-15V) and 1 torroidal +12V(or 8V) to make it work?....
There are two PSU on the board, for digital and for analog part.
You can use one torroidal with a secondary windings of 15-0-15 and 0-9 V.
 

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Thank you guys. That is very useful as I don't want to make the card burn with my very little knowledge of electronics and electricity🙂
I will try this and give you some feedback. We'll see if it's better than the 9028q2m audiophonics I play usually.
 
It need just one torroidal +15/-15V on power, it is a good board, simple and gets all points of good sound needed, no LPF, so use RCA out to external amp


It can use Picore but if you connect via I2S you will get native DSD 64/128 not DoP

If it can play native dsd, it's a good thing no?
I only managed to play dsd using DoP for now with my 9018 and 9028 using Moode.
Does native DSD make a difference in terms of sound quality?
 
I agree. The output filters are quite similar and use the same topology.
I have measured the performance of the "old" version. In case someone is interested, I can post the results here. Warning: the numbers are not impressive.😱
 
I would be interested in these measurements! The main disadvantage of the old board to the new one might be the same ground for digital and analog section as they use the same PSU. In +15V-0V- -15V mode the output DC blocking caps on old board can be bridged and the following tie down resistor can be removed. This might improve the measurement data as an mono-polar aluminum cap is not a good choice for DC blocking in Signal path..
 
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Here are some measurements on the ES9038Q2M Board.
The first file contains measurements using the original circuit and with a different op-amp.
The second file contains measurements using the original circuit and an alternative output stage.
 

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I agree. The output filters are quite similar and use the same topology.
I have measured the performance of the "old" version. In case someone is interested, I can post the results here. Warning: the numbers are not impressive.😱

Here are some measurements on the ES9038Q2M Board.
The first file contains measurements using the original circuit and with a different op-amp.
The second file contains measurements using the original circuit and an alternative output stage.

Dang, you're not joking, this implementation must be pretty rubbish. On the other side, Victor did this: Chinese ES9018K2M I2S DAC