At the moment I use two DACs, one is the Chromecast Audio Analog Output (3.5mm) and the other is the Topping E30. Okay, so far so good. I balanced both with the multimeter and listened blindly against each other. Ok, there were differences, but I didn't do the test to hear the differences, I did it to find out which one I preferred. And every time, I preferred the Chromecast Audio. It's not that I don't know that the CCA has worse measurements, but I find that the sound is much nicer than the E30, even though I know that the E30 has better measurements. Am I deaf or do I just have different preferences? But let's consider that as a fact, what does that mean in terms of improvement? What would be a DAC I could try if I wanted to improve?