So I've been going back and forth between the V2+ and Air for a couple of hours now. I've been listening to my regular demo list with two different laptops running MediaMonkey with identical settings in both Windows and MM. I've been using my modded T50RP's and some LZ A4 prototype IEM's (wife's home so no open cans yet wink.gif ).
I've got to say that I'm super impressed with the performance from the little Air unit. It comes very close to the V2+ in sound quality and signature. I really don't like talking numbers when it comes to sound but in lack of anything better I'll do an exception and say that based on my rather short listening session with a couple of not super revealing headphones and IEM's the Air has probably 85-90% of the sound from the V2+. As a lover of the V2+ this is of course excellent news, to be able to bring most of the V2+ sq with me wherever I go.
The V2+ may have slightly more air, a bit more controlled and deeper bass but the difference is not big. Apart from that the overall signature is very similar. The V2+ of course has a lot of other features like significantly more power, toslink, coaxial and a couple of analog inputs etc.
I'll do the same exercise again when putting my review together but that time I'll be using some of my more revealing open headphones but so far this really seems as the perfect portable unit for anyone loving the sound of the V2+.