These are my notes that I have copied from the NYC CanJam thread
Haphazard notes on the Mojo 2
I had a chance to listen to a few things at the show, and for me the Mojo 2 is the only one I'm writing about because it is the device that in my judgment offered the best price-performance ratio. I started comparing it to my original Mojo and there was an appreciable jump in sound quality that I think is worth the upgrade. I have to admit that I did perceive it as a tad bright in the treble. I've seen a few folks indicate that they hear the Mojo as bright and harsh, but that has never been the case for me. If anything I'd say the Mojo is relatively smooth and even a tad reticent in the treble. With the Mojo 2 the first thing I noticed was the increased level of treble extension and detail. Treble definitely stands out a bit more on the Mojo 2 akin to the Hugo 2. Everything is more intelligible, and micro details are more evident. The articulation and texture it brings to instruments and vocals is a definite step up. I think I'd still give the nod to the Hugo 2 as the more technically competent, whether that extra level of technical competency translates to engagement is left to be seen. I've just ordered the Mojo 2 to assess this for myself as my suspicions are that Mojo 2 offers that engagement without compromising too much on the technicalities. In all honesty, the Mojo 2 was great at making me feel like I wasn't missing anything at all unless I compared it directly with the Hugo 2.
The Mojo's bass in my opinion was never really quite well defined, at least compared to some of its competitors like the iFi Audio iDSD Black . The Mojo 2 fixes this. It has impact, speed, texture and depth. Driving my Sony IER-Z1R, it was very tastefully done. I was surprised at how much better in the bass it was. It's a very notable improvement over its predecessor in this regard.
The other thing I noticed was the dynamics of this new Mojo 2. It is fantastic. Transients are also super clean and the dramatic stop and start of moments in the music drive excitement and is a definitive trait of the Chord Dacs that makes itself known upon immediate listen.
Mojo 2 also has a nice blackground. The Mojo still does well for vocals and some may still prefer it's more full bodied nature. I started preferring the Mojo 2's mid the more I listened. A nice tinge of warmth is added, and it is as mentioned earlier so articulate. You hear more nuance in the vocals and the tonal colors are more evident.
Soundstage is probably in about the same, but because the Mojo 2 is better at instrument separation and placement it feels more well defined, particularly in the depth.
Mojo 2 is also more layered with inner details that would've otherwise been smoothed over by the Mojo being brought to life. Thankfully, it is still very coherent sounding. Lack of coherency was my major concern when I saw initial impressions in this thread that it was more detailed. I love details, but not at the expense of coherency. At the end of the day I want to know that I am listening to music. I know the Mojo 2 was special because I just stopped comparing and listening to my music. At that moment it didn't matter if something else was more detailed or more refined or whatever, I was just once again listening and enjoying my music. Obviously there are many variables at play in our hobby. I did my impressions above as one could glean with the Sony IER-Z1R IEMs playing tracks from Tidal on myPhone. I would encourage anyone especially those willing to spend good amount of money on kilobuck DAPs and DAC/Amps to give the Mojo 2 a try.