I have also a lot of hires audio - to play this audio I own some expensive hardware.
Yes, I can play audio with this cheap amlogic boxes over HDMI to my modern AVR
But ... I don´t think I can win formula 1 championship driving a fiat 500.
I play my hires audio on FiiO X3 - headphone amplifier - Beyerdynamic T5
FiiO X3 - coax out - AVR - Bowers & Wilkins
Yes, I know, you're right. I was planning to use this TV Box as an additional audio source just for comfort.
I have a PC configured as source for hi-res audio, FiiO E17K Alpen 2 DAC/headamp > Grado SR225e as mobile setup and Rokna RD-2 DAC > Exposure amp > Odyssey Nightingale loudspeakers.