Tom 8999, yes the Sabre dac is much better than the Wolfson DAC in the D1. I’ve owned the A1 and D1 as well as a few other Wolfson dacs from EAR, Exposure and others. I also have had a number of dacs using the current Sabre chips - the X1, Mytek Manhattan II, Ayre QX5 and Exasound e32. The latest generation of Sabre dac chips really are superb and a significant advance on their previous generation, and a very big jump from the Wolfson chip.
mgrif104, I have done the comparison you are referring to. I have the X1 as well as the U1 Mini, and have run both into my Mytek Manhattan II. I always thought that the U1 Mini was a superb streamer (which it is), but the X1 as a streamer is significantly better again - greater clarity, deeper tonal colours and less "hash". However, even when using the X1 as a streamer, the Mytek is a noticeable step down from the Lumin dac. The streaming section of the X1 will not suddenly turn a lesser dac into an X1 equivalent.
mgrif104, I have done the comparison you are referring to. I have the X1 as well as the U1 Mini, and have run both into my Mytek Manhattan II. I always thought that the U1 Mini was a superb streamer (which it is), but the X1 as a streamer is significantly better again - greater clarity, deeper tonal colours and less "hash". However, even when using the X1 as a streamer, the Mytek is a noticeable step down from the Lumin dac. The streaming section of the X1 will not suddenly turn a lesser dac into an X1 equivalent.