i just picked up a pair Sennheiser PXC250's. Small, closed, active noise reduction. (20% off. ) Figured they seem to be decently rated in spite of all the gadgetry added on, but i wanted something for a few flights i'll be taking in the next two monthes. i feel like i've been pulled out of a cave into the sunlight. i don't even know what all these sounds are and i'm sure these headphones aren't even that great, but wow. i'm only listening at like 20% volume instead of the 65-75 i was before. Amazing, and i know it'll only get better. i keep worrying my computer crashed, i can't hear the fans anymore.