Thanks for responding Moray James.
I think perhaps my question is less complicated than I made it sound in my prior post. []
I'll try to clarify. For my purposes, I just need to know whether using a Heresy III in the orientation exactly as shown here (http://www.klipsch.com/na-en/products/heresy-iii-overview/) on the floor below my HT screen would yield an 80 degree/90 degree dispersion pattern in the horizontal dimension. In other words, with the speaker oriented as shown in the picture, would the dispersion width be 80 degrees/90 degrees? I'm hoping the Heresy in a center channel role can provide the wider horizontal coverage, rather than a 30 degree/ 40 degree pattern.
Just trying to get it straight before deciding on a replacement for my center channel speaker---the new Heresy III is on my short list.[]
Tom