The standout feature of the TC44Pro E2 is definitely the technical performance. The resolution and separation, especially up high, is impressive. From cymbal crashes to guitar plucks to ambient sounds, there’s good definition and no real feeling of muddiness, even on busier tracks. Also, on sensitive IEMs such as the Dunu Zen, the sound remains clean and free from background noise or hiss, a testament to the DAC’s clean output.