Trying to get Sound Stage with Klipsch Tower Speakers


I have Klipsch RP-8000F speakers and do not get decent soundstage.  The vocals seem well-located between the speakers.  I have paired subwoofers for bass, and therefore no problem.  Piano, violin, brass seem to emanate from either the right or left speaker.  I've tried toe-in and varying speaker position without success.  In my other system I use KEF LS50 Meta's and the superiority of soundstage is stunning.  I would appreciate all helpful suggestions.
aeschwartz
You just aren't going to get a big sound stage with the smaller Klipsch loudspeakers. I think the larger horn speakers do a better job at that. 
Do you have them far enough from back wall? Also, have you tended to damping first reflections, etc.? Room treatment?
Read a few reviews and I'm seeing a trend towards home theater and live performances. 

Here's a lengthy review:
https://everydayaudiophile.com/the-power-of-kids-and-a-review-of-the-klipsch-rp-8000f/
and here is a quote from it:
"Soundstage? This is where the klipsch speakers really started to fall apart for me. Try as I might, I could not get a soundstage that was well defined. Instruments and voices were always hard to pinpoint their location – instead it was like looking through a foggy window. I could definitely tell that the singer was walking across the stage, but my eyesight was blurry and I couldn’t tell you exactly where they were."