Hello, headphone newb here. I got my pair of ATH-M50s a few days ago. I think they might be messed up! :d When I listen to a song with deep bass or high treble the head phones pop/fizzle. They also have this happened when a song starts. Is this a sign of the headphones being messed up?

I am looking to buy a pair of headphones.    Price range around 150 I would prefer a pair of portable headphones I would like punchy crisp bass and still have great highs and mids I listen to more of this type of music http://soundcloud.com/eos/winter-solstice   As you can probably...