Soundstage Heresy IV and Forte IV

Big Soundstage without a big footprint is why Ilike the Forte.    The Heresy are good , don't get me wrong but they don't have the scale and authority of Forte or Cornwall and they need a sub.   

My Forte IV’s are incredible, soundstage is wide and big.  On my 2a3 amps the detail and texture is exceptional.  I have had 2 reviewers from “The Audio Beat” over and they were very impressed by the lively sound I get from my 4w tube amps.  I can’t say enough about them.

If you're serious about soundstage, you can't be serious about Klipsch. That said, Heresies are not much more than knee high, have now low bass, and sound like it. Fortes address both those issues. But if I were looking for the kind of dynamics Klipsch offers and soundstage and bass, I'd seriously check out JBL, maybe the HDMI 3800 or a lovely pair of used Synthesis S3900s on sale here on Audiogon for $4900. The S3900s are a serious step up into a very elite league of speaker.

Like cfarrow said,  the Forte throw a huge Soundstage.   With my 300b it's a great combo.   When called upon images extend way beyond the speaker .   

I think half the equation is the amp.  They sounded great with my  Quicksilver Mid Monos , they sound very good with my 40 watt SS Cyrus i7-XR ... can listen all day,  and incredible with my 7 watt Toolshed Amps 300b.   Huge holographic sound.  

They play nice with a number of amps.  I picked up that Cyrus on closeout, just to try it for a bedroom system.     What a great sounding amp !  I used it in my main room for the last 3 weeks with those Forte and it didn't disappoint.  It was really hot here lately so I gave the tube amps a little break. 

Concerning soundstage, what is causing the difference between the two speakers?

I hear that Forte soundstage is better than Heresy, but I also hear that the Cornwall soundstage is better than Forte. Arent Cornwall and Heresy using the same mid and tweeter components? Then why would Forte have better soundstage than Heresy?