K-240 MKII : Excellent for mixing.

I've had these Mk IIs and a pair of K240S for many, many years. I've mixed and mastered all of my commercial work on them and never had any rejections or complaints from producers or directors. They may not be the most tasty for listening to music (although I really love their character), especially modern bass heavy music, but they are very flat and detailed, making them perfect in the studio. Some components have broken down over time such as the ear pads and foam, the cable coating has peeled and the AKG logos have fallen off. But even so, they remain wrapped around my head daily and haven't let me down yet. I'd recommend them for general mixing over the more expensive AKG models as those tend to have more of a hyped frequency response.