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ES9038Q2M Board
ES9038Q2M Board
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Old 20th November 2020, 07:55 PM   #6201
feket663 is offline feket663  Hungary
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Join Date: May 2007
Hi! My name is Istvan, I'm from Hungary. Currently I'm listening a cheap, chinese ES9018K2M I2S Dac (with some capacitor tuning and 4 independent Superreg Power Supply) with my Raspberry PI4 and Volumio (common settings: Generic I2S DAC, audio resampling: ON, Bitdepth 24 BIT,sample rate: native) . The sound quality is perfectly acceptable for me, only have one issue: when I switch to DSF file, I hear a loud clicking noise when the song starting or I search in song.
If I buy an ES9038 Q2M board with built in controller, will this problem go away? Or maybe need buy an USB-I2S controller?
I previously owned an Onkyo TX8130 network receiver, there was no problem playing DSF files...
Please help, If you can...
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Old 21st November 2020, 02:01 PM   #6202
Markw4 is offline Markw4  United States
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Join Date: Jul 2016
Location: California
Hi Istvan,
Sometimes pops like you described are cause by the player software or by the OS. Could be that it has something to do with using DoP protocol to play DSD over RPi GPIO bus. Only way to be sure would be try changing those variables and see if the problem goes away. Its not all that uncommon of problem actually.

Pops can also occur because of dac hardware. If software is not cause then it makes sense to focus on hardware. Sometimes switching to a USB interface as the source of I2S signals helps because a good USB interface has two signals that can sometimes help to solve pop problems: MUTE and DSD_ON. The mute signal means just that, mute the dac output while MUTE is asserted. DSD_ON can allow firmware to mute the dac while the changeover to DSD mode is taking place. In addition, it may be possible to dispense with DoP and use Native DSD instead.

The final chance to stop a pop from occurring may be a dac chip's 'auto-mute' feature (if it has a one) that tries to mute the dac chip at appropriate times. Often that works pretty well, at least so long as a big pop noise is not being sent by the software that neither the USB board nor the dac chip knows is not an intentional part of the music being played.

Last edited by Markw4; 21st November 2020 at 02:03 PM.
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Old 21st November 2020, 03:14 PM   #6203
feket663 is offline feket663  Hungary
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Join Date: May 2007
Dear Markw4!

Thanks for the reply! I tried all value of buffering, but can't help.
Now I found a new style ES9038Q2M dac, I think I'll give it a try.
Here is the link:
ES9038DAC

Quote from Description: Support 32BIT/44.1-384KHZ DSD64-DSD128 output, full frequency music switching without popping sound.
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Old 21st November 2020, 03:29 PM   #6204
Markw4 is offline Markw4  United States
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Join Date: Jul 2016
Location: California
Hi Istvan,
you might need to try something other than buffering. Maybe find a USB board and send the dac I2S through the USB board. Maybe try it with Linux, Windows (if ASIO driver available for USB board, etc.).

Adjusting software buffers cannot fix some types of pops coming from software. So, one should try other types of software and or computer hardware changes.

Regarding the dac you linked to, to me it looks like junk and I probably could not stand to listen to it. I would rather listen to the dac in my laptop or cell phone.

IMHO, there is no point using ES9038Q2M unless the circuitry around it supports getting low distortion sound out of the dac board. The dac chip doesn't matter as much as all the other stuff does. All a dac chip does is set a maximum limit on the best sound you can get if you do everything else really well. However, in cheap dac boards the only thing that is good is the dac chip, the thing that matters the least.

Last edited by Markw4; 21st November 2020 at 03:33 PM.
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Old 21st November 2020, 06:42 PM   #6205
feket663 is offline feket663  Hungary
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Join Date: May 2007
I will try an USB-I2S converter...
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Old 24th November 2020, 07:22 PM   #6206
Markw4 is offline Markw4  United States
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Join Date: Jul 2016
Location: California
Anybody besides me figure out what that Vref filter with the 10-ohm resistors is really for on AK4499 eval board?
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Old 25th November 2020, 01:49 PM   #6207
Adrian Lucas is offline Adrian Lucas
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Join Date: Sep 2020
Location: Turkey
Dear Mark.
Sorry for off-topic question.
I am planning to buy an item from Linsoul, but i am New in Linsoul.
I have a question : (For example calculation)

Normal price for Yinlvmei S3 now : 199 USD
After black Friday discount : 179 USD (for example)

If i have a 50 USD Gift Card : 179 - 50 =129 USD
And if i apply %10 discount (LINSOULBFCM10) : 129 - 12.9 (%10 discount) = 116.1 USD

Is my calculation correct? Can i buy it for 116.1 USD?

Many thanks for your help.
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Old 25th November 2020, 05:58 PM   #6208
Adrian Lucas is offline Adrian Lucas
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Join Date: Sep 2020
Location: Turkey
I mean , can be multiple discounts possible at same time?

(Black Friday discount + Gift Card + extra %10 discount)

Maybe can't be available 3 discounts together at same time, i don't have any experiance before with Linsoul.
I hope, you can share your experiance.
Thanks.

Last edited by Adrian Lucas; 25th November 2020 at 06:03 PM.
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Old 25th November 2020, 06:06 PM   #6209
Markw4 is offline Markw4  United States
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Join Date: Jul 2016
Location: California
Regarding multiple discounts, it depends on the seller's policy. Many seller's limit or do not allow combining discounts because it would cause them to lose money on a sale. IME most discounts are calculated to make at least a little bit of profit to help pay for the costs of running a business. You might have to ask a seller about their particular policy on that.

However, a gift card is normally something that somebody paid for. It is not actually a discount.

EDIT: Regarding Yinlvmei S3 in particular, there is a customer review on the their webpage at: Yinlvmei S3
– Linsoul Audio
The person rated the unit as only 2 out of 5 stars due a problem with the sound. You might want to take a look at that and see what you think.

Last edited by Markw4; 25th November 2020 at 06:13 PM.
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Old 27th November 2020, 12:03 PM   #6210
potstip is offline potstip  Turkey
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Join Date: Oct 2013
Hello folks;
I will play only pcm files (max 24bit 192Khz) and i want to use single 24.576Mhz external clock with my es9038q2m board. which register configrations i have to make for proper operation.
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