This drove me nuts when I was helping a friend to set up his brand new system ( Roon -> CA CXNv2 + CAX61 + Q Acoustics 3050i speakers ). I found it impossible to get a Lossless path in Roon. After a lot of tinkering, in the end, I discovered that Roon was reading the data from the DAC (hence reporting upsampled = Sample Rate Conversion) while it was streaming at the original resolution. I later found the video with the guy from Cambridge Audio saying that 'forcing upsampling was so much better that there was no point allowing the user to turn off the feature.' I found that very odd (understatement ...).Yep. Definetly is.
About that, @biglebowski told me that some people on Roon forum complained about digital outputs being also upsampled. I did not find such things :
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What's weird, tho, is the upsampling being there using Roon Ready input... so already applied in the software domain. Seriously, why?
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Another limitation I found was the CXNv2 lacks a USB Audio 2 out, hence forcing to use SPDIF or TOS Link (therefore capping the res at DSD 64 and PCM at 192) if one wants to bypass the CXN internal DAC and use the CXA61/81 DAC, which support higher-res, DSD 256 and 384 kHz).
It seems a bad strategy (duplication) to have two (different) DACs in two devices that should work in synergy, and the lack of USB Audio out in the streamer (while - thank God - present in the amp), a machine they prise for connectivity.
Later, reading CXA81's poor measurements in Amir's review only added to the overall feeling of disappointment with these products.
BTW, My friend was never quite happy with the overall sound.
I have to check whether he's changed something or just gave up.
PS: sorry for the rant, I usually lurk, but I couldn't resist jumping in.
Marco from Italy