I'm sure real DTS-ES matrix and DD EX matrix decoding vs. circle surround in 6.1 mode would be about the same. However, I have not seen any processors, besides the SMART and the Parasound add on boxes, with the ability to add a height channel yet even though both 6.1 matrix formats are capable of one (no movies have exploited that feature yet).

However, DTS-ES Discrete 6.1 is a whole other discussion since the center back channel is in fact discrete and full range when properly decoded.

The Model 950 will have DTS-ES Discrete 6.1, ES Matrix, and Dolby Digital EX decoding, but I don't think it has any internal set up for using a height channel, nor the outputs for it.

Dan