mine are fucked and iv only had it since my birthday (sept24th)

whenever theres any bass sounds or low notes the left ear crackles to the point of being unlistenable . . . the only music i can listen to using them which escapes the problem are 1 man & his guitar sing songwriters (no real bass) and brain meltingly heavy metal (so much bass and heaviness it pretty much drowns out the problem)
iv decided to go back to using the phillips headphones i got with my cdplayer when i was 16/17 because they work, and are more comfortable anyway.

anyone else experience this ?