Hello! I've been searching far and wide and asked stuff about headphones. Now I feel like this might be just me wanting to get new headphones, for the sake of new headphones. Really I just want sound that I like and can live with for a long while. I don't want to get something new that I already got. I've convinced myself the K501 lacks bass and that's why I need new headphones. I got the Nocs NS400 iem in hopes of them being better than the 501 for portable use and sound wise, but the sound isn't as good although near. Its the drum toms I can't stand. They feel so lifeless and dull (this for the Nocs). Also at home I want even less hassle, hence the over-ears. So now I know I want lifely sound. I want the music or whatever I throw at them to come alive from the phones, unveiled and clear. I also want moar and articulate bass. Rather natural sound, not too clinical. I have three contenders and now it seems I will be getting one of them. Used with a FiiO E17 amp (that I don't have yet) and 320kbps and flac from pc/laptop. I'm totally ok with amping the bass if that will cover my needs. AKG K551 + Reportedly decent bass, more than 701? + Sound quality on par or possibly even better than Q701? Just different sound sigs? + One of the most beautiful headphones ever in white along with 701 + Closed - The seal doesn't work well with glasses maybe? For some it does but to me it seems risky. AKG Q701 + Its AKG + Music sounds as intended? + Its beautiful in lime or white + It is widely praised as a good phone + Some graph suggests this has more bass than the 880 250 ohm version even though not considered bassy headphone + Good soundstage - Weird sound stage? Distant vocals? - Not an improvement? I listen to all kinds of music and I really want the metal and rock to sound good also. I'm not really sold on the 501 heavy performance but its so awesome on classical. - Not versatile enough? Beyerdynamic DT 880 + Considered a very good all around headphone (this is the use its going to get, everything and anything) + Ranked highest #26 on this thread under 400$ http://www.head-fi.org/t/634201/battle-of-the-flagships-57-headphones-compared-update-hifiman-he-400-added-12-24-12 (while the K701 was #32 and more importantly considered under the K501) + Semi-closed + Neutral sound + Can be ordered with customization - Too crispy highs? - Still lack bass? What to do what to do... If you can give me some pointers here would be nice.