Remember, the Sherwood R-972 receiver with Trinnov room correction? It's now scheduled to arrive in December for $1800, and is probably worth the wait, judging from the demo. Despite deliberately misplaced speakers -- center too low and to the right, others too high -- it generated a warm and rich soundfield that was surprisingly vivid and involving. And it did so in two locations, the first with an orthodox seven-speaker array, and the second using only the right side-surround and right rear-surround. The idea is that you may want to listen in different locations, a good idea for rooms with more than one piece of furniture, right? The setup mic is an unusual four-part object. Of the three parts of the room-EQ process (measurement, analysis, correction) it's the analysis that's special, as Trinnov founder Arnaud Laborie explained while showing the professional version of the product. It's pictured. Notice the two color-coded speaker sets: one showing the front speakers where they ought to be, and the other one showing where they actually are.