Thoughts on my speaker selection?

Your not giving us enough to get good advice back. 
What are you trying to accomplish with an upgrade? Is there something you like about the Klipsch, or dislike? Room size, musical tastes, amplification, etc. Not sure how people can be so quick to advise without this information. 

Klipsch especially can be tough to upgrade from since they play very loud and go low with a tiny amount of power.  
I would try and better quantify what you want to get out of an upgrade and solicit more targeted feedback. 

If home theater were my main use I would look hard at the SVS towers.  For some reason SVS speakers have not caught on in the US - but they are seriously popular in Europe where they continue to win EISA awards.  

I have the SVS ULTRA TOWERS heard some of the other speakers. I blast blues rock and some electronic music and play jazz at moderate volume and the towers sound awesome, lots of punch and slam. Highs are slightly deficient but it could be my declining hearing. Best bang for the buck

If you like the klipsch I expect the JBL would be the next most efficient and subjectively least disappointing as we will pick the loudest speaker as best in short term listening. 

i'm hard considering starting with a center HSU CCB-8 and maybe doing LCR with 3 of them.
Anyone know how it compares to the JBL 590?