No it won’t play both the from both the wide and height channels at the same time. The manual also clearly states this in a note. So I can get 9.1 based on the standard 7.1 and adding either height or wide channels, but 9.1 with both height and wide channels and no surround backs is not possible on any of the Onkyo 1007, 3007 or 5007 receivers. They probably just patched this onto an existing 7.1 design. Maybe the next generation will be fully customizable because I agree if Audyssey is touting wide and height being superior to back channels you would think they would offer that option.
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3M80 2M22 6QS8 2M2 1EP500 Sony BDP-S590 Panny-7000 Onkyo-3007 Carada-134 Xbox Buttkicker AS-EQ1