No, and no one would want to do that. You have the measurements proving it cannot be upgraded already...SMSL PO100 PRO:
What clocks are applied? Can it be replaced?
If the source is not MQA, it is a no-question.Can MQA ignored?
...How it would not be compatible with the X26 PRO? Or you mean, I2S pinout, specifically?Is it compatible with Gustard X26 PRO?
These ones are not real jitter measurements of the digital output. These are estimations rather and after the receiver input, which means that its jitter suppression is also included.after watching the measurements I see measurement of jitter as low as 1 to 0.2ps
Túl sok marketinget olvasol."A PULSAR CLOCK egy sütővel vezérelt kristályoszcillátor, amelyet kiváló minőségű hanglejátszásra terveztek, és jelentős javulást biztosítanak az olyan hallgatási paraméterekben, mint a fókusz, a jelenet kiterjesztése, a hangminőség."
You're reading too much marketing. Only the numbers matter."A PULSAR CLOCK egy sütővel vezérelt kristályoszcillátor, amelyet kiváló minőségű hanglejátszásra terveztek, és jelentős javulást biztosítanak az olyan hallgatási paraméterekben, mint a fókusz, a jelenet kiterjesztése, a hangminőség."
The PO100 Pro comes with only one input: USB. The outputs are coaxial, optical, and I2S. Hence, no, it will not take a coaxial input from the Sony Blu-Ray player.Do you know if that SMSL PO100 pro will work connected to the blu-ray sony ubp-x800m2 with coaxial and then to the DAC smsl do400 with usb or I2s cable?
I see, clear, thanks a lot for your help.The PO100 Pro comes with only one input: USB. The outputs are coaxial, optical, and I2S. Hence, no, it will not take a coaxial input from the Sony Blu-Ray player.
Sorry for the late reply (been a lurker here, but only recently created an account).
I recently acquired almost the same combination of gear, the Topping D90SE and the S.M.S.L. PO100 Pro, connected through I2S. I chose that combination because the USB connection on the D90SE is already in use for another source and the PO100 Pro got good reviews (for a 5th of the price of other solutions).
Initially, I had this same problem: No sound through the I2S connection, while coax does work just fine. I found a reference on the Internet that disabling pin 16 would help: https://audiophilestyle.com/forums/topic/67506-ddc-i2s-dac-no-sound/
I grabbed a cheap HDMI cable and bent pin 16 inside using a needle and that did indeed do the trick!
All other settings are left to defaults, for the PO100: I2S Mode 2, UAC 2, for the D90SE: IIS Phase STD, IIS DSDR LRCLK, DSD Flag 15.
The fact that disabling pin 16 apparently unmutes the channel seems to imply that Topping expects a high signal to mean Mute, while S.M.S.L. seems to expect a low signal for the same and sends a high to unmute. Or perhaps there's another reason? Some missing signal to the PO100 that tells it it can unmute?
Due to the lack of standardisation of the I2S protocol through HDMI cables, it's hard to point fingers, but if my theory is correct then I tend to side with Topping here.
If we want a proper solution to this problem, I think contacting Topping has the best chance of succes: I doubt the PO100 could be updated with newer firmware, while that is an option for the D90 range...