...I got these off eBay last week. I had been poking around for some for about a year now, and had finally pulled the trigger on a pair. The primary use will be for music and movies late, late at night/early in the morning. I work late and my movie watching/music listening at 4 in the morning can bother my roommate.
I had a chance this week to listen to several different sources with them and for the most part I really like them. Everything has great dynamic range and I am able to clearly make out subtle background noises. The bass is just right for me, while I haven't heard the 7509's (more bass) I don't think I need any more than these offer.
I noticed that music really comes alive with them. They are great for classical music that is recorded at low levels. I am able to hear most instruments. With movies, they sound great except for dialogue, which is a little overbearing, for my tastes. All the subtle noises recorded in the background really stick out. I used the superbit version of The Fifth Element to compare back to back scenes. While I could hear all the subtle background noises with out the headphones, they really became apparent with them.
I am happy with the purchase and would easily recommend them to others. For reference these are the only headphones I have ever owned, save some $5 Coby's I use occasionally in the lab at school. So I can't compare them to any other quality units.
