Arindelle,
I'm reading you're with the MC Beta team, which makes you an expert on the subject I've risen.
I'm not an expert on anything!
I just know the software pretty well. I try and help people cut corners in the JR learning curve and avoid errors I made when starting out if I can. I'm more of a helper for beginners than for advanced users; (I'm also more of a musician than an engineer). Most people on the Beta team are really experts though in one specialty or another
I have no MP3 files. None. I have regular CDs and a few SACDs. I've transfered my CDs on my Portable computer HDD. I then converted those files to FLAC and noticed an improvement in the sound compared to the original CD version, using an Arcam rDAC.
Yep, I see it was Tom Sawyer that mentioned mp3s now. I have the same with my system! I have a snobby Linn CD player, and I prefer the sound coming out of FLAC files through JRiver and a Dac Magic bought on ebay for 150$
There are lots of reasons why you could see improvements over cd playback (or if the same DAC is used, perceive no discernible difference, perhaps)
I then bought a TEAC UD-501 DAC and converted those Flac files to DSD. Still a better sound. Is it my imagination? You seem to say it is impossible to improve the sound from its original format....
How do you define improved sound ? For me it is being, in my perception, as faithful to the original as possible without coloring the sound. I want to listen to a Phil Spector - wall-of-sound recording - in Mono not in surround sound 7.1. Not everybody agrees with me
However, putting an already lossless track in one container (Flac) and putting it into another lossless container (DSD) that takes up a lot more space - there seems to be no "scientific" reason to support doing so (
in my understanding) ... providing that all gear is the same and the output gain is identical. I think there is expectation bias, and confirmation bias that plays a big part in thinking one thing sounds better (there is a much more touchy subject about wav files being better than flac for example). I bet its because you are listening through two different DACs. I would do a true abx test with a friend and send both cpm and dsd to the TEAC. The TEAC and the Arcam are not the same ... you might prefer one over the other. That would make a lot more sense to me if you haven't tried that already.
Anyways I'm somebody that thinks 500$ is better spent in room correction than expensive cables.
Talking about "Sound Quality" often is imaginary anyways. But saying that, music is all about imagination, and what's important is that you enjoy listening to it.