I don't even think I'm going to open the S12's because I'm in love with the Olinas and I'm not sure the Sony NW-A55 is really going to be enough to power them to their fullest potential. Like, I'm sure they will still sound great through it, but it seems a waste to use them exclusively as portable IEM's through a DAP that isn't known for pushing out a lot of power when pretty much all the impressions I've seen seem to indicate they really shine with a bit more oomph. If I were someone who was going to alternate between using them on the go and at home with a high powered set up they sound like they would be perfect but I'm wondering if the Olina are more what I'm looking for because honestly, as it stands right now, I'm pretty well satisfied with how they sound.
EDIT: I opened them. I prefer the S12 by a large margin. I can't believe how good they sound, even through just a FiiO X1. Truly blown away.