Don't get confused by marketing speak on that page (which also the video person fell for). I am very good friends with Harman folks who designed and patented the software that creates the shape of the waveguide. It does exactly what I explained. If you look at the M2 page, it says what I explained even though it still has some random marketing in it:
http://www.jblpro.com/www/products/recording-broadcast/m2/m2-master-reference-monitor#.WnK0RKinGUl
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The technology first came out in Revel speaker line. If you look there, you see a more clear explanation matching mine:
http://revelspeakers.com/newsdetail...rd-with-new-revel-jbl-levinson-offerings.html
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The software they have takes in the directivity that you desire and it spits out the physical shape of the waveguide. Since we are talking about one speaker, there is no concept of imaging between two speakers to feed the software.
Computer aided design for waveguide has existed for a long time. What is new here is creating shapes that are not the classic smooth ones with the process reversed. That is what they have patented. The Revel speakers have almost imperceptible creases in their tweeter waveguide that makes a big difference in their directivity.