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."


Klipsch’s Tractrix® horn features a circular throat around an advanced titanium diaphragm tweeter that transitions into a square 90º x 90º mouth.

This unique shape provides a cleaner, more efficient transition of sound waves into your listening space. The result is a wide listening "sweet spot" with precise placement of instruments and vocals.


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The way it is made, a wave guide is all you can do. That throat is the first reflective surface of the wave.

Foam on both sides of the throat, left and right, start at the outside and move in, adding strips. 1" tall 1" wide. When you get close go to 1/2" wide strips, to fine tune it..

Remember not to dense a foam, you can tinker with that too...

Position will REALLY make a difference then.. Toe in or out. and vertical, camber/caster...

I suppose you could pin point it more so with vertical top and bottom foams.. Highs might get a little hot though. Tone control is an option.

TURN down the bass while doing this... that throat is a collector of distortion TOO. the foam will help there too.
It acts like a weir, or a phase plug in the sub/bass and bass coming back into the throat off axis, more so.

After the tweak, add the sub/bass back in..

Yup.. I’d give that a shot, cost... mmmmm 2 dollars.

I call that a stocking stuffer or toilet paper... your call. :-)

Regards