Why not horns?

Johnk, do you have a link to that. I assume you aren't talking about the system you have posted here.

Midrange purity of horns? Ha! You can't be serious.

Mapman, as with any speaker driver one can change the presentation of horns. I have read man posts by horn users who prefer solid silver wiring. In some places I agree with them. However, I recently went through auditions of an interconnect cable that is made with solid silver wiring but comes with the option of copper or silver connectors. The silver connectors most definitely moved the musicians to the front and right into your face. The copper connectors, on the other hand, tended to move things back with a more relaxed presentation and that is the option I chose.

unsound, I assume you are generalizing? Yes, my horns do have midrange purity, and low and hi range purity as well. I'm sure we can all find examples of speakers of any type that do and don't have purity.

Unsound,

Which approach's midrange purity do you question? Horn, Walsh or Walsh/CLS, or both?

If a single driver can cover most of the midrange with a flat response and have good dynamics, that to me would indicate at least the potential for midrange purity. Whether or not it is realized or not would depend on additional factors in each case though of course.

Dan_ed,

Have you ever heard omnis like OHMs or mbl?

I believe setup can surely affect the tendency of a horn to be more forward or not, but I am not sure if I can envision them being as laid back as omnis I have heard.

And again, to me, a forward tendency is part of the attraction for me in taht I like to look at radically different approaches to achieving good results.

I also suspect though that along with a more forward presentation goes an increased chance to offend or irritate, but I do not think that this necessarily has to be the case and that is the sound that I would be interested in hearing.