Thank you all for replies! I didn't expected this community
Additional information: Before those phones, I had
Marshall Major II. With those, the music sounded well. Not perfect, not noisy.
I tried connecting to Soundcloud with PC, problem remains, although it was better than from my phone with songs downloaded from YT. I would like to listen to music in better quality than YT, but I listen to a lot of alternative music that I won't find at Spotify or so.
Also, those "Noisy tracks" are little DJs, but also for example KoRn, who I believe have decent studio.
Once again, thank you all involved!