I sometimes watch music videos on YouTube with one of my systems using headphones. One truly enjoyable pastime is watching the music video; while the same track (be it a recording or live performance) is playing on another system.
I’m not a fan of streaming devices or streaming in general.
Regarding the following:
--MQA--
--> I think CD quality .wav files ripped with bit-perfect software and played on jriver or any decent music playback software is better than MQA. There are plenty of other settings on software that can greatly influence playback quality.
-- DSD --
--> In theory, what DSD does is similar to some vintage audio components like 1 bit DLCs, which can be very resolving because they still resolve 16 bits with the faultless compromise of introducing noise in to inaudible frequency bands, while using noise shaping to achieve PCM that is satisfatory or even very good.
-- FLAC --
--> Like .mp3s .flacs are compressed files that need to be "unpacked" before being played. But unlike .mp3s, they are lossless rather than lossy. .wav files on the other hand are truly lossless and native to the Microsoft operating system. Therefore on the lowest level, (kernel) which is equal to the datalink layer on the OSI model (computer networking) the slightly longer signal path and small amounts of mainboard noise from computers are effectively eliminated. This is why sometimes .flac files can sound a bit warmer - it's the CPU/mainboard doing a bit more work.