Spotify sounds compressed


So now that I have more time to mess around with things like this, I started using Spotify and went premium right away. But it sounds compressed. I looked in the settings and the high quality streaming switch is on. When I switch it off, there is no change in sound.
I have my Samsung tablet hooked up to the preamp using it as the source while using my Asus notebook to manage things. The settings on the tablet are set to receive extreme quality signals. When I listen to Radio Tunes the signal sounds much better with extended highs and very deep lows. It just seems to me that the Spotify highs are compressed, not very extended. Is this the norm? I think Spotify is excellent for finding new music, but it doesn't sound the best.
128x128abucktwoeighty
Thanks guys. I'll be sure to check out Rheomusi. Right now I'm looking at an inexpensive DAC for hooking up the notebook. Something like a Musical Fidelity V90 or a Music Hall dac15.2 which both cost the same at AA. Don't want to spend a lot at first. May upgrade later.
I love Spotify for background music. I have it all over the house and at the pool. Makes the house happy. When I want serious listening I go to Vinyl/cd
Been using Spotify premium for awhile and am quite happy. Mine is run via airport express toslink cable to dac/ preamp. As others said not all recordings equal. Try searching in Spotify for audiophile test track playlist to sample some better recordings. Also try linn radio on the web for good quality streaming music.