I've not done any objective measurements, but I feel like the lower mids/higher bass is quite recessed. That's not really my problem with the earbuds though but it does give them a very definite V shaped sound signature, but I feel the V shape sound has its place in everyone's collection. I have two problems with the Rose Masya: fit and piercing highs. I suspect that I'm more sensitive to highs than most though. In any case, one can roll off and smooth the highs over with some EQ if you're one of those folks who doesn't mind using it (I'm not one of those guys).
The fit is.. weird. They always feel like they are going to fall out of my ears. I'd use the earbud wings to keep them in place better but I have to remove the foams in order to use them. Using the Masya without foams brings to mind using a dentist drill to my eardrums - never heard highs THAT piercing before. I'm trying to figure out a way to keep the foams on AND use the silicone wings! No luck so far. If anyone knows how to do that, please let me know.