MC wrote:

puddingoreo wrote:

Will there be ESS version of PRO, or PRO would stay AKM ?

The ADI-2 Pro FS R BE will not change to ESS. We have enough AKM chips in stock for these units for some time.

Hi MC, this message was July 2021 - is it still the case now ?

Yes.

https://porta-fi.com/akm-resumes-dac-an … -new-dacs/

There are 13 ADC and DAC models named here. All the names suggest multichannel DAC/ADC´s. I suspect the car industry is on the waiting list for alot of those. 4458 and 5558 is on the list. So maybe RME can get their "moment to shine" with fantastic UCXII. I got one quick, but seems to me there is alot of backorder around.

4490 series is mentioned as evaluation samples of a new revision to their popular HIFI DAC series AK4490R and AK4493S.

puddingoreo wrote:

Will there be ESS version of PRO, or PRO would stay AKM ?

The ADI-2 Pro FS R BE will not change to ESS. We have enough AKM chips in stock for these units for some time.

Hi MC, this message was July 2021 - is it still the case now ?

https://www.youtube.com/watch?v=43kkU49sRLo

He looks thinner and a bit tired in the video compare with his Hi-Power phone output clip .... could be he works too hard in past months .....

Will there be ESS version of PRO, or PRO would stay AKM ?

The ADI-2 Pro FS R BE will not change to ESS. We have enough AKM chips in stock for these units for some time.

Will there be ESS version of PRO, or PRO would stay AKM ?

Well, my guess is there will be a new version for Pro in the near future as well.
I guess RME sells far more DACs than Pros, so the DAC inventory ran out much quicker once the last AKM based batch was manufactured.
The other reason may because it will take longer time for RME to redesign the Pro, as the AD circuitry needs to be changed as well.

Brickwall is not part of the ES9028Q2M. Neither is NOS and SD Slow.

NOS  has been implemented as before. It is not true NOS (bypass, no filter) but a highly reduced filter. We even optimized it a tiny bit so that the overshoot seen on the pic in the manual does no longer occur.

Thanks MC for your correction! Wow, the solution is even prettier than I thought about!

perhaps you should watch the RME official tutorial: https://www.youtube.com/watch?v=enZD40j-kjI
filter starts at 4:04

it's better you watch the entire 5 episodes to understand how to operate this machine:
https://www.youtube.com/watch?v=fDadqF2 … BXHW8oMCGx

Watched entire 5 episodes, now have a clearer picture of the menu tree..... Many thanks !

Johannes AU wrote:

OK, you mean at the setting we can choose one of these filters at a time? and how it affects the output sound? ( I do not know anything about those filter tech at all )

With google you can find some articles related to filters:
http://nihtila.com/2017/01/07/dac-digit … y-domains/
http://nihtila.com/2019/10/18/dac-digit … 3-filters/

Thank you, I will read and try to understand and learn more :-)

Exactly our thoughts. @johannes - read the filter chapters in the manual, they basically answer your questions.

I am a mechanical guy, not understand much about electronics especially audio electronics, BUT, I will try, learning is good thing !

OK, you mean at the setting we can choose one of these filters at a time? and how it affects the output sound? ( I do not know anything about those filter tech at all )

With google you can find some articles related to filters:
http://nihtila.com/2017/01/07/dac-digit … y-domains/
http://nihtila.com/2019/10/18/dac-digit … 3-filters/