Can we start a petition for Oxford to add Sony's logo next to the definition of "evil"? Because what they have done is that -- pure evil.
Just tried the newly arrived MH755.
How can someone make a pair of earphones that sound so good at that price, and make them with an F-cable that is too short to be used anywhere without an extension? What sick, twisted mind came up with this? Is this some kind of social experiment by Sony? The only way this could've been more evil is if MH755's cable ended with a proprietary connector, and only Sony sold compatible extension cables, $100 each, or something like that.
Seriously, though. These sound great to me: pretty well balanced sound with almost nothing missing, except for perhaps maybe a bit of the lower sub-bass (which is missing from a lot/most of earphones anyway) and a bit of sparkle in the upper end. Also, the mids are rather forward so at times they can be a little shouty. Still, for $7, the sound coming from these is nothing short of a miracle.
However, I'm not at all convinced of the existence of the "burn-in" phenomenon, or, to be more precise, that it leads to any audible change, so I doubt the mids will "calm down" with time.
Nonetheless, like I said, these are still a ridiculous bargain, their price/performance ratio is off the charts.