I am really happy with the A8 for streaming Tidal only . I have the Laiv DAC and c2800 pre amplifier. Maybe you are asking to much for the internal DAC? The A8 with EQ filters and all streaming features(radio, youtube, Tidal, qobuz, roon ) is a great streamer in that price range specially with its I2S output. You need to pair it with a decent DAC.
I am using the same power cord than yours.