your TAD speakers are one of the least transparent, completely coloured by heavy cables and the complex SS electronics required to bring them to life
this topic is not about TAD Transparency , It is about File/Streaming vs CD .
I have compared File/Stream vs CD in many systems not only in TAD system.
For example In CEC/Weiss/Vitus/Skogrand/WilsonAlexandria or CEC/AN-DAC5/Audiopax/LivingVoice or ...
I have spend more than 1000 hours to see what is possible in file/stream playback .
Clark Johnsen (his book is about Polarity) did not like writing Reviews , we can learn from Clark Johnsen why most judgments and reviews and ideas is not valid in Audio. Internet is full of different ideas about sound but very few ideas are Valid.
The real problem of audio reviews or any idea about any subject in Audio is two things:
first : we have many variables (like room acoustics , speaker place, matching, impedance matching, voltage level matching, ground loops, AC quality, amplifier speaker matching, room speaker intraction) that you can not compare two audio device in equal condition.
Only Clark Johnsen and Roy gregory pointed about this problem if i am not mistaken.
For example you can not review/compare two speakers without finding best match amplifier for each of them. You also need match acoustic (room) for each speaker and speaker placement is very very critical. It means if you want compare two amplifier or two speaker then you should compare two complete different systems in two different rooms and ...
Another example : If you put your speaker in neutral zoon to have least intraction with room then after changing your amplifier you should change speaker position.
all magazine reviews and all audiophile ideas about X vs Y is in one system and this does not mean equal test condition.
second: most audio systems are not properly optimized , this problem decrease transparency and most audio judgments come from audio systems that shows difference of A vs B less than 5% .
If your system shows huge difference/contrast between File/stream vs CD then it means your system is transparent enough to judge file vs CD .
Finally audio judgment is not as easy as audiophiles think