I have begun testing my setup with the Aria test DVD, and am noting some problems with the surrounds. When I do a 5.1 sweep test, I get the same tone from the L & R surrounds (same sound out of both when a test tone is sent to either).

Also when playing the phase test for the surrounds, and you are supposed to hear a 1.5 second in-phase tone followed by a .5 second out-of-phase tone, I only hear the 1.5 second in-phase tone and don't hear the .5 second out-of-phase tone.

I also noted that I don't seem to be getting any subwoofer output on the surround/subwoofer portion of the subwoofer test.

I am wondering if I missed some setting on the 990. I checked the connections between the 990 and the amp, and everything appears to be in the right place.