I've been trying to Google the problem for a few weeks now, but god fucking damnit, I have run out of search terms that does not translate into Google trying to sell me shit... and now I'm getting desperate so - here is the issue: Some instruments go mute. I know some songs well, and the headphones will reproduce these songs - sans some of the instruments present - usually higher pitched ones. Some will play entire albums, all without lead guitar. Another good example is for example Good, Bad, Ugly soundtrack - without the iconic whistle. I've tried messing around with equalizer (both on Winamp, as well as an equalizer-app for my phone), but no luck. I get the same result wether I plug them into my phone or my computer - it'll reproduce songs, but sometimes leave certain instruments muted - although sometimes *very* faintly audible, way, way back into the distance. The very same tracks are reproduced without any issues with some cheap-ass ear-plugs that I got laying around. These headphones were a gift, however, and pricey, and it's frustrating that they should behave in this manner right off the bat :I Does anybody know what the issue here might be?