Streaming lot's of music you can hear from spotify and tidal hifi (losless) i use it alot (tidal) only a small price every month (2 cheap cd's) or your computer, you often can use your phone as a remote control for streaming.
No bass,treble control.
No need for that when the amp sounds good, then you try to find speaker that match what you like, lot's of bass or an open clear sound often from small speaker from uk and italy, personally i feel it's nice to hear the different sound quality and mixes where edm has alot of heavy bas, some rock music may be loud and agressive, and eva cassidy's live at the blues alley and paul simons graceland (25 edition) sounds just wonderful, no need alway to keep bass loud all the time let alone adjust bass,treblefor every new record you listen to.
When the recordings are good than there is wonderfull differences that i like to experince and genre,rock,pop,heavy metal,jazz,blues,disco) once in while you do find a record old or new that just sound amazing, deep dynamic non bloated bass, clear detailed midrange and a soft non agressive,fattigue top with just the right level to hear all the fine details where you never want to eq the sound with anything else than the volume knob