I bought a pair of Turbine's a few months ago and that pair started losing bass in the left speaker. I RMA'd them to Monster four weeks ago and now this pair has the same problem with the missing bass/tiny sound. It seems to be driver flex but I cannot get it to pop back. I have tried a variety...

I ordered some M9P's from Newegg to replace my Zune v2 headphones that I use for music on the go and while they sound good the imbalance is quite bad. The right channel is 2-3 volume levels above the left channel. Is this common? I contacted MeElectronics and they said they would replace them so...