Best options for active speakers $4k or below?


Want a simple but superb sounding all-inclusive active speaker for my elderly but loud-music-loving mother in NJ. Used is OK!

Thanks!
redwoodaudio
Alternatively, try Genelec 8030C.A lot depends on how big the room is, of course.
Adam S2V if you want something with better high frequency response.
I appreciate the ideas. Thank you. Aside from the Elac, I don't think recording studio monitors are ideal, though.  The speakers would be in a medium sized living room not in near field.  Are these the only options? 
KEF has a version of the LS50 that is both wireless and active. That would be my hands-down choice! Partner them with a Bluesound Node 2i and a Tidal subscription!