I have noticed that Sound Cloud distorts the sound, especially with cymbals. It sounds like high frequency hissing distortion. I have noticed that it is also dependent on the chipset on the PC. We use Thinkpad for work and they are horrendous. My Dell at home is significantly better but not perfect. Android phones seem to be fine.
If I play the same song as an Mp3 it is perfect.
What other "free" alternatives are there?