Sahmen, I get the feeling you possibly misunderstand something here. As if you are thinking the filter-information (PRIR) is somehow moved to the Yarra. Just to make it absolutely clear: this is not the case. The A16 does what it always does, generate a 2 channel signal using the PRIR, the 2 channel signal goes to the Yarra (via spdif, analog stereo or stereo over HDMI), and the Yarra does not do any binauralisation (in this case, using it with the A16), it only beams 1 channel to the left (and only the left) ear, and the other channel to the right (and only the right) ear effectively replacing the headphones. (Although the channel-seperation will not be as perfect as with headphones, but good enough for it's purpose). As a consequence, the limitations of the Yarra's decoding capabilities are unimportant, because the A16 does the decoding and the binauralisation all formats that the A16 can handle, all upmixing of the A16, and up to 16 simulated speakers (on every conceivable position, at the ceiling, on ear level, on the ground if you wish, just measure it where you want it) are possible.