I really would like some help making a good value for the money i'm willing to spend for new headphones. I want to upgrade from my old sennheiser pmx 100. To sum up i want the best sub 500€ over the ear headphones that money can buy. I'll mostly use with a portable player at home. I'm wiling to sacrifice confort, design, etc. for top of the line audio quality. Open or close back if it can give me soundstage feeling. I listen to hard rock music. I'd rather prefer low impedance so i can connect them directly to my portable player without amp and still have enough max volume. I'd like heaphones that can give me clean and detailed sound with strong enough bass. I love guitar solos so it has to have detailed high frequencies too. Basically i listen to dvd quality compressed music, so i don't need to pay for something to remind me that, but still i would like my heaphones to have detailed reproduction. I hope i'm making myself clear, because my english isn't good. Thank you for your help! Have a nice 2014!!