Let’s put aside the fact DX168 is a stage box and it can be used on a distance from SQ.
I’ve seen somewhere and some time ago, that DX168 has better preamps and DAC/ADC than the local SQ ones. Someone even mentioned that they are exactly the same as on dLive(???) I can’t find this info now. So if someone could comment on those detail, it would be interesting to know.
The info on which particular DAC/ADCs are used on SQ, DX, and dLive would be very valuable. Also, if someone could share their experience of using DX168 vs local i/o, it would be nice!