[tyt921]

when i play music louder on my new set of m50's there tend to be, SOMETIMES, have this buzzing sounds on the headphones...especially when the bass is in effect. a hint of buzzing as if the drivers or whatever is loose...any guesses?
 
playing it directly thru itunes on my mac

 

[1Time]

I'd guess a hair stuck on the driver or something loose that's vibrating. 

 

[LiquidExtreme12]

It seems like a manufacturing defect. Send them back for a replacement. I assume your still covered by warranty!?

 

[tyt921]

actually, just realized it only happens if i turn on my pre-amp settings in my Equalizer in itunes...in PERFECT setting.
other than that, its fine...no buzzing noises. any ideas?

 

[LiquidExtreme12]

I dunno what to suggest then. Try not using it with iTunes. Use it with Windows Media Player or something?