Just sat on my couch and listened to Frug in G major by Corduroy.
The L2 bass is less overpowering than the L1, but it seems quite clear to me (I don't like too much bass personally). The L1 can have a tendency to have the Mids and Highs overshadowed by bass. The L2 doesn't have this problem.
Another thing I noticed while listening to this song is the highs are more present with the L2. I can notice the high pitched sounds a lot more and they're clearer. This might be too much for people, I don't know. The thread starter did say they might be a bit too much for some tracks and become simbalant. I'd agree, but I actually like hearing high pitched details occasionally, though perhaps if a track had a lot of cymbals being hit over and over it could get distracting.
The Mids are similar, I think they're more clear on the L2 though as I have noticed overall vocals are more forward with the L2. This maybe because the bass is better controlled and less overpowering.
So again. The L2 is an nice improvement over the L1 in my opinion. They are not flat (I think that's the term). Philips has stated in one of their videos on YouTube something like (paraphrasing here) : We asked a lot of people about sound preferences and changed the sound to suit people's tastes.
So don't expect something that is intended for critical listening or whatever. It does sound nice to me though, and that's good I think.
Edited by Stealthy Ninja - 11/22/13 at 9:12pm