Sound Quality
This type of headphone is particularly difficult to make sound good because the small, sealed enclosure behind the driver makes them prone to significant coloration. Additionally, the small earpad surface area against the ear does not readily achieve a good seal, which leads both to loss of bass response, and poor isolation from outside noise. These types of problems are readily apparent with the Q460.
The bass, if you can get the headphones to seal well, is surprisingly good. That's a big if though, in real use bass response is likely going to be a bit hit or…