Thanks again.
Agreed, but the AC200 should not need to be replaced - it will simply stream bit perfectly to the MQA/MHR compatible endpoint (such as the replacement for the MS200).
So, in hardware terms, are we hypothesising:
MS200/MS600 => (optional AC200) => MQA device => DSP
or:
MS200/MS600 => MQA device => (optional AC200) => DSP
or:
MS-MQA-capable-replacement => (optional AC200) = DSP
And, it seems, that all the above would demand that the MQA material is either stored in Sooloos or streamed (Tidal) via Sooloos. What about other files that one might want to play from (say) a laptop or disc-spinner? To do that, the MQA device would need a USB and SPDIF input as well. So we are quickly moving towards an 818-type solution.