Vice soundtrack on spotify, follow the link below, Track 4 'You made me breakfast' there is an Orchestral part of the music 39 seconds in that I will use as the basis for discussion. Listening Impressions for the orchestra part: Macbook pro driving Sennheiser IE80 directly - sounds really 'rich', tonal and harmonic. Soundstage more intimate, less separation of instruments, darker than AK3003i. Really awesome, the music feels alive! Macbook pro driving AK3003i - very similar to above, but more clarity, brighter - but not as rich in colour and to me not as enjoyable as the IE80 (AK3003i has the edge in most other tracks though). Chord Mojo driving AK3003i - greater soundstage and imaging, but the richness of IE80 fed from the Macbook Pro is missing. I feel as though the quest for greater 'clarity' and 'separation' of instruments has meant that you loose the body of the music, it's become separated and less 'harmonic'... Can this be true? Chord Mojo driving IE80 - loss of 'richness' and 'enveloping' sound compared to playback via Macbook Pro - there is a gain in soundstage/imaging, but not as much as with the AK3003i (to be expected I guess as the IE80's are not as resolving as the AK3003i). Once again the AK3003i don't sound as dark as the IE80's. So, I'm a bit baffled here - why does the apparent combination of a higher end outboard DAC in the form of a Chord Mojo and AK3003i sound 'worse' with this track? It's as if the quest of image separation means that the body of the music now exists as separate limbs. The more compressed presentation from the much cheaper DAC in the Macbook Pro, with less dynamic range, and poorer SNR, actually sounds better!? By the way, actually tested this using an iPhone 7 with the external 3.5mm lightning adapter and it sounded dreadful - completely flat and devoid of almost all merit, which is not surprising for a £10 DAC. But I am surprised by how much better the Macbook Pro (A1502 - late 2013) sounds. Help me explain, why and what I'm experiencing here as I'm at a bit of a loss as it goes against perceived wisdom of what is 'best' - SNR/Dynamic Range/Imaging etc... Trying to improve my kit so that I have a 'euphoric' and enveloping sound, whilst still retaining detail.