Hmm....not good. After just 20 minutes of listening at not excessivly loud volumes, my Hi-Fi is giving me a headache. I'm about 12 ft away from it, so I'm not too close - I'm playing a variety of music also. It seems to me like the top-end is going all scratchy like it is distorting - a symbol sounds like a schhh rather than a ting, if you know what I mean. Any suggestions people? Funnily enough, it's not as bad with the covers on, however I loose detail like that! Wharfedale EVO2 30s , Arcam CD73, JVC A-X5 amplifier, QED QENEX 1.