Carl, I think as long there is no RC and upsampling and enabled in the processor, MQA just get past through.
Of course only possible up to 96kHz MQA "carrier" frequency (not content) with all digital.
Maybe somebody can test that with SE DSP, but just make a simple 218 >> DSP SE >> config file, as I think when the config file include a processor, MQA gets disabled, but it's just a guess...
800v3/218/271/8k.2/5k5s

/5kC/DSP3200/Reviver/
TT-ELP/Graham Slee Revelation/Trinnov Altitude 32/OPPO 205
__Ayon/HB/Shunyata/Miltzow -- power cables,
__Ayon/Jungson/Miltzow --analog, Miltzow-- digital,
__Vortex/WMA ,