Klipsch speaker choices

If you're referring to the height of the Heresy cabinet when you use the word "shortness", they are designed to be on the floor.  They are on risers that are tilted up, so yes, they can create a great soundstage.  I tried mine out in my main system recently after damping the horns and they created a more immersive sound stage than my Harbeth Super HL5 Plus.  They aren't in the same league as the Harbeths in many other important ways, but don't fall short by a huge margin either.

I have owned many a Klipsch speakers the K horns are on my short list.
the inherent flaw of not just a Klipsch but 80% of speakers out there is they use 
what I would call substandard Xover parts ,which is the heart of all Loudspeakers 
on average many use Solen rated a 6 out of a possible 15  Duelund casthas been the standard Rated 15  bit very costly$$ and Huge.
there are cerebral much less expensive alternatives though ,Path audio the best Resistors Available  for Loudspeakers. Getting back to Klipsch Quality Vacuum tubes somewhere in audio chain is a big plus , also klipsch Cheap connectors low grade brass. Put a Good connector on there that is Copper based.  This will take away any brightness or non musical sounds and at least a  minimum of 10-15% increase in musicality across the board. I have been modding speakers for 20 years now . I had $15k ML stats
and they had Solen caps and cheaper evo Mundorf caps . In fact their $80k
flagship had similar parts.i wrote to them No response , maggi also cement junk
cement resistors and non name caps . The owner of Harbeth hung up on me 
using those maroon jelly caps from Taiwan , when in fact you are in the UK 
Clarity capacitors were right down the road for a lousy $1-200  sacrifice tons of potential fidelity. It is just uncalled for in my book ,electronics same thing.
on average less then 25% of the cost actually goes into the product this is the average,the rest markup and overhead. Having owned a Audiostore ,
and being into Audio over 40 years . Iniw inspect everythung  I buy and upgrade it to a much higher standard ,with electronics for more technical things I have 
Top technician friends . If you plan on keeping it for a long while then consid
fixing the weak link.  It can still sound very respectable with the mods but I am just saying there is a Lot of potential there just waiting to be discovered 
after 20 years and working with the best I have learned how to save $1000s 
just by buying a high quality used product and modding it .
thst is how Dan Modwright made his reputation ,hire great designers and put in top grade parts in the most essential areas. Best of Luck.

My deceased audio expert always put better parts in all my electronics and built me a crossover so I know first hand what good parts are.  It does baffle me why a manufacturer will save pennies on parts.  electrolytics vs film for example.  thanks

Save some $$ and try a pair of Klipsch Quartets like a smaller Forte

Another vote for the Forte IIIs!