well, they still sound amazing... And by amazing, I mean for 70-80$. Don't know about the old ones, but the passive transducers sound cool. I bought the new one cause its able to be driven on the go. I have a home system from the 80's that is rated for 20 watts into 8 ohms, so I'm guessing good enough to drive anything except maybe planars etc. Now, the question is: what headphone from akg is next on my list, and what headphone from any other company should I get?... Oh, and there is this guy who has presonus HD 7's (never heard of it until then.) he said they were 300$. He said they were awesome. So, I go look it up on amazon later, and they were 60$. (they look exactly like the k240's too.) I said, ok. So he's trying to impress people by saying they are expensive. I talked to him today, said those aren't 300$. He denied it and said he bought them for that price, then proceeded to call my k240's jank pieces of crap. -_-.... So, after that, I told him either you got ripped off, or are trying to impress people by saying they are expensive. He then said, I know all about headphones! I bought really expensive ones! *facepalm.* I just stopped arguing with him. They are nice, no doubt, but not nicer than my k240's amped, and he might have paid a ridiculous price for them. 300$... And then I told him my headphones cost more than his on amazon, which he then said "its amazon. You can get anything cheap on there!" ok then. Well, just go on there, and compare prices to WalMart etc. Its the exact same price, or pretty close.