Sennheiser HD515 Dynamic Stereo Sound Audiophile Headphones

Pros: Great for rock, good bass, light, comfortable, detailed sound, changeable parts for longetivity, long cable, materials don't make you sweat

Cons: Weird big to little adaptor which is chunky, press on ears a bit, bass can be overpowering on certain sources, but fine if you can adjust the equaliser, treble a bit weaker than bass,

Summary: "Hooked up to our iPod, however, the HD 515s sounded too bright and forward and wouldn't play terribly loud. The iPod didn't seem happy driving the 515s, which means they definitely won't be a good match for other MP3 players, most of which are much less powerful than Apple's trendsetting model."

Hmmm... didn't find that problem on a nano... and my Zen copes really well with all music, even drum and bass.

Rock is excellent on these headphones though. Great for frets on fire.