Integra DHC - 40.1 not decoding DTS
So I just took delivery of an B stock Integra 40.1. I know its an older unit but I'm a civil servant firefighter and its all I can afford
So I've hooked it up and am enjoying it thus far.
I have an Nvidia Shield connected to the unit. The Shield reads from my home network and is connected to the Integra through HDMI. I set up the Integra (through listening mode preset) to decode DTS sound as direct, but when I play back audio coded in DTS (for example Roger Waters The Wall 5.1 DTS) it plays back in all stereo. So I went back into the listening mode preset and assigned DTS to be decoded as DTS but still it plays back all stereo.
I confirmed the audio track is DTS with Mediainfo. Mediainfo indicates that the audio track is 48.0 kHz 24 bit 6 channel DTS, but all I get played back through the Integra is all stereo.
Any idea what Im doing wrong?