I wonder what the long term effects of highly bass boosted headphones will be on the higher end of the headphone segment. Many people are introduced to headphones by these bass boosted models and brands like Beats have done an excellent job in marketing themselves as some sort of premium high end choice. As people are used to that sort of sound when they try headphones which have a more even, natural balance they tend to find them boring and lifeless and dismiss them as rubbish. A lot of reviewers seemed to criticise the Oppo PM-1 and Oppo PM-2 for being a bit boring and dull when my view was that they were very neutral and natural sounding headphones. If the market demands the sort of sound signature of the likes of Beats then that is how the suppliers will go.