The overall sound signature is warm and smooth with a relatively full body mid. The listed frequency response is surprisingly accurate. Treble does extend fairly well but micro detail tends to get overshadowed by the warmness and takes a backseat in the overall presentation. Mid is full and dominant with good texture, which is particularly good for vocal. Bass is decent, not quantitatively large but in good amount, depth, and impact while not being too fast – a little more dynamic transducer like instead of balanced armature like. Soundstage is typical not a strong point for IEM with a fuller mid, In-Ear2 however performs better than expected. While there still isn’t enough air (because of the lack in micro detail from treble), the IEM is able to show a good sense of depth as the warmness doesn’t seem to mud up the overall resolution – perhaps this is the benefit of having an open-back design.