Whats in the box
Sound and overall
The iBasso AMP2 is an add on, an extra. perhaps akin to purchasing an aftermarket cable to squeeze that last little bit of performance out of an earphone or to tweak its signature ever so much.
The AMP2 is aimed at single ended 3.5mm jack users, imho. As an owner of several balanced cables and earphones to match them with I found the AMP1 balanced out to be preferable overall with its added power. Not that the AMP2 is a slacker at all.
The iBasso AMP2 I think is designed to try to reproduce a similar experience for single ended 3.5mm users.
It introduces a more more fuller sound all over, more body and a nice added low end to the music.
The early mids are more present and highs are a little more smoother, it still retains the fairly neutral signature of the AMP1 but adds more to the lower half of the sound spectrum.
Its not a huge jump, but is different enough to please.
I didn`t feel a need to rush back to AMP1 as I enjoyed the AMP2 quite considerably, the slightly larger sound stage that the balanced out offers pulled me back towards the AMP1.
I think If one was dependent more on 3.5mm ear/headphones this would be a great purchase for them as iBasso DX200 owners.