hum..I see your point…The big concern to me is that, since I don´t live in USA, everytime I order a pair of cans if I don´t like it I sell it….That´s the reason I will order starting with the most popular brands… it will be easier for me to pass a senn than a superlux, for instance. You know what I mean? Since you have mentioned 598 and HP100, can you please tell me who wins in terms of soundstage, spaciousness, and good separation?
The fit isn’t always an easy thing to be sure of when you can’t try before buying, since some ear pads will not have a satisfactory fit to some ears. Power requirements aren’t a simple matter of looking at the impedance, since efficiency or sensitivity doesn’t always track directly with impedance. Another issue indirectly related to power requirements are whether the headphone has the option for ‘balanced’ use or some other connection that isn’t a 3.5 mm or 6.35 mm jack and plug.
Over-ear and on-ear headphones effectively block out outside sounds, allowing you to hear your music or whatever else you're listening to crisply and without distraction. Over-ear headphones are sometimes known as full-size headphones because they completely envelop the wearer's ear. This results in what's known as passive noise reduction, which makes these some of the most-preferred headphones available. The only drawback is that your ears and the skin around your ears can get warm and sweaty. These are usually the heaviest type of headphones.