One of the strenghts of wiim products, IMO, is the ability to apply PEQ to all the inputs but they have just one digital toslink input. Ultra add hdmi-arc but I agree that a coax dig input would have been a nice improvement. And once you have a SOTA dac inside who cares about digital outputs...
Temporary exhibition in my fridge: taleggio, parmigiano reggiano seasoned more than 40 months, formaggio di fossa (matured in a sort of pit with walls covered with dry straw)
I realized that now you can choose the filter shape (peak, low or high shelf). But I still have issues with the stored eq, sometimes I find a flat line and my filters are lost
No DSD support on hdmi for the R9: HDMI IN: Supports up to 192kHz/24bit. I guess the K19 is the same. You would loose the eq ability anyway, so why use DSD?
Avalaible on order at Audiophonics. I don't know, it is an interesting product but 1400 euros for a dac are a lot of money nowadays, specially if intended mainly for desktop use (tiny screen, no remote). I wonder how the user is expected to manage a 31 bands peq, the Fiio Control app for android...
https://www.audiosciencereview.com/forum/index.php?threads/fiio-k19-looks-like-a-versatile-beast.52926/
Further enhancing its audio processing prowess, the FiiO K19 incorporates an ADI SHARC+ ADSP-21565 DSP from Analog Devices Inc. This powerful digital signal processor is primarily utilized...
I don't use it so often but mine is working fine. Even the problems in storing personal eq are solved, I guess. I use it with Aria and Senn hd580. I managed to load the last update to the firmware and even to the usb drivers without issues (after realizing that I was using the wrong usb c cable :D)