Topic: Manual for new revision of DAC using AK4493 but not original
While looking something up in the manual which I accessed via the downloads page of the ADI-2 DAC product page (https://www.rme-audio.de/adi-2-dac.html), it opened as v2.0 while the description said it was v1.8 with a different link than usual:
https://www.archiv.rme-audio.de/download/adi2dacr_e.pdf for v2.0 instead of
https://www.archiv.rme-audio.de/download/adi2dac_e.pdf for v1.8.
See image below
What I found on page 57 is this new sub-section SD LD (Short Delay Low Dispersion) and updated section 31.5 DA Filter Curves 44.1 kHz
However, while it looks very interesting it's not available with FW 33 on my DAC.
Given that the link is different than usual, I suspect this version of the manual should not be out yet and we might have to wait for at least the next FW update to be able to try the SD LD filter. Note however the date of the measurement: 28 August 2019. This could have possibly been brought out in an earlier FW update.
Further there is also a new THD measurement on page 59
Looks very good. I do wonder however what the characteristics (frequency, Q, attenuation) of the notch filter are. Also, if those measurements are for the DAC it should be RCA/Cinch instead of TS.
EDIT: Edited title of thread. See post below.