Below are excerpts from the review:
The TC35i’s sound is neutral, clear, clean, transparent with accurate and tight bass reproduction. In comparison, most dongles such as the Helm Bolt, Shanling UA2 or the AudioQuest DragonFlys are slightly coloured. The ddHifi dongle works well with even the most sensitive multi-driver items.
Anything the TC35i drives sounds excellent be it phone or computer. The Audioquest Dragonflys actually add bass and therefore colour (“warmth”) whereas the TC35i is more neutral. It is hard to find a dongle that equals or surpasses the TC35i/Apple audio adapter in terms of dynamics, clarity, cleanliness, and imaging.
Anything the TC35i drives sounds excellent be it phone or computer. The Audioquest Dragonflys actually add bass and therefore colour (“warmth”) whereas the TC35i is more neutral. It is hard to find a dongle that equals or surpasses the TC35i/Apple audio adapter in terms of dynamics, clarity, cleanliness, and imaging.
Source: Audioreviews
