A few days ago, I had a listen with a IM70 at a headphone shop.
The sound signature to me was surprisingly enjoyable, it suits my taste quite well. One of the reason is that the vocals wasn't overwhelmed by the bass or treble.
However, one thing that bugs me was that the mid-bass was causing Male singers' voice to sound unnaturally boomy.
Anyone with a IM70 can confirm my observation on the boomy male voice?
Since IM50 is said to be less bass-boosted, perhaps owners of a IM50 can share if Male singers sounded odd or not.