The speakers are the weak link until you hit about ~$1500/pair, then it's diminishing returns from there. Kef LS50, Revel M105 are two excellent pairs of speakers for nearfield listening that both have very wide and uniform sound. Ascend Acoustics Luna is quite good as well, but more sensitive to height due to the physics of a ribbon tweeter. For powered, I heard the Kef LSX at my local Best Buy and it's quite good, just like a bass-restricted LS50W. Genelecs are quite good as well.
Then you should look into investing into room correction, get a UMIK-1 mic and a Minidsp DiracLive kit or run REW, or if you have powered speakers that come with their room correction system (like Genelec does) make sure to run that.
Finally, depending on your music tastes and/or living situation (apartment vs house) you may or may not want a subwoofer, or some other bass supplement device (butt kickers/subpac m2).
Last edited by astrallite; 11-24-2018 at 12:55 AM.