Even with Audyssey MultEQ XT32, there are some things Trinnov offers that Audyssey can't match. It has less to do with equalization and more to do with spatial remapping - Audyssey still doesn't have anything comparable to Trinnov's remapping function. It's that carrot dangling in front of us all that has probably kept Outlaw interested in a Trinnov-based Model 998 alongside the Audyssey-based Model 978.
I am familiar with that feature, but I have to wonder what practical application there is for it? And then there is the cost of Trinnov. I don't know what the licensing fees are, but ADA seems to be very ... proud .. of Trinnov and are really printing money selling it into the high end custom theater space.
Hard to say - I've read some things that suggest even some of the latest receivers and processors with DSX and PLIIz are only including eight-channel DAC's, which means you have to decide whether you'll use height channels or surround back channels. I'm going to wait to see what they actually offer before I assume anything.
That has indeed been the case. The first wave had that choice, but the second wave has nine main channel outs and the next wave ... at least in the top o' the line models ... will have eleven main channel outs.
Personally, I am fine with 9.2 as I cannot place Heights in my theater. And I might even be fine with giving up my rear surrounds as I have only a 7-ch main amp.
Jeff