i thought the stereo button, right above the sleep button.. lets you scroll thru stereo, bypass, then upsample, 5.1 etc..? Without having to enter the on screen menu. that's how it works for me.
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Outlaw Audio 990 pre amp
Adire Audio sub (SVS 12.2 driver)
CAL Alpha tube DAC
Parasound P/HP-850 2 CH pre
Pioneer PL-530 TT
Polk Audio SDA 2B
NAD 2600A amp
Danger Boy here