So I can now confirm that in terms of impedance matching they're is no issue going Ares II - > Saga S - > xduoo-ta-26 - > Audiolab 8300A. There is no loss of bass. There is however a boost in treble, which changes the sound enough to make me take out the schiit from the signal path and use roon dsp instead, converting dsd to pcm be damned.