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RE: Julian Hirsch at least...

Posted by josh358 on March 3, 2011 at 17:59:57:
AFAIK, good imaging did happen, as evidenced by Blumlein's original patent, but it seems to have been a pretty much hit-or-miss affair. Forex, I gather the KLH-6's were symmetrical two-ways, but my AR-11's were asymmetrical -- midrange and tweeter side by side, but not mirror imaged. Which caused problems with crossover lobes, too, something that wasn't understood until a few years later. Also, I don't think the deleterious effect of early reflections on imaging was understood. Loudspeakers were regularly placed against walls, when pulling them only a few feet out into the room would have improved things dramatically. I also suspect that edge diffraction and symmetry issues are less deleterious at a significant distance, as in a large hall.