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Both the Microsoft Surface Thunderbolt 4 Dock and the Lenovo Thunderbolt 4 Dock sport a Conexant CX21985-10Z DAC chip. I'm using the MS one (teardown here: https://dancharblog.wordpress.com/2023/04/07/surface-tb4-dock-teardown-and-review/) and Roon says it is able to put it to decode and render MQA files and play them in lossless mode (up to 352kHz in my test).
I'd be guessing it's Roon itself doing all that (rather than the chip), but the dock sounds pretty OK to me + I have been able to play an MQA-encoded FLAC file in it with Foobar2000 as well.
Has anyone tested these things -- i.e. docks like these and their sound? Are the Conexant chips just like Realtek chips one usually finds in PCs and that's it, or is there something else going on?
I'd be guessing it's Roon itself doing all that (rather than the chip), but the dock sounds pretty OK to me + I have been able to play an MQA-encoded FLAC file in it with Foobar2000 as well.
Has anyone tested these things -- i.e. docks like these and their sound? Are the Conexant chips just like Realtek chips one usually finds in PCs and that's it, or is there something else going on?
