So, continuing my thinking on those three DACs (just in case my thinking helps others trying to pick a DAC):
The data from Amir on those DACs is using balanced for the input, which can be 3dB more, or rather the single ended out of the E50 is likely going to be 118 or 119, putting it in range with the E30 II, which is also single ended, but utilizes the 2x AK4493 chips. This also then raises whether or not the 19+20 IMD is significant on the E30 II. Don't have an answer for that yet. But on single ended, these two units may be closer in performance.
Meanwhile, to then get a unit for balanced connections, the D10 Balanced becomes the obvious choice. This has a similar SINAD to the E30 II single ended, but is 3dB less than the E50. But this uses the ES9038Q2M and is an excellent implementation thereof.
But, there is a bit of jitter seen in both the D10 Balanced and the E30 II that is not seen in the E50. So if planning on coax, it would likely be better to step up to the E50 to avoid the jitter while getting both SE and Balanced in a single package with excellent performance.
That brings setting up to do both to $300 for the pair of D10 Balanced and E30 II, or there is the E50 for $270.