Personally I find both Klipsch and Polk too bright for Music. If they are to your taste then that’s good for you. I would look at Polk’s Signature series instead however. A better comparison to Klipsch’s RP series. I have heard both but I actually prefer the Signature series. Polk S20’s have a 6.5” woofer that fit your needs.
However, if your needs are 100% music, I would like to steer you towards Ascend Acoustics, Emotiva, Chane, Wharfedale, or Philharmonic Audio. Philharmonic Audio and Ascend would be my top choices, AA+ Monitors and CBM170’s respectively. Very neutral speakers, perfect for music.
AA+ Monitors are probably the best 2 channel music listening speakers for the money. $290 and they provide usable bass down to 34hz(I think if I remember correctly). Dennis Murphy did those speakers good.