miroslav
Cosmic Cowboy
I've been using Koss Pro4's....
.... but they get rather heavy after 15 or 20 minutes of work.
That they do!.
I have 8 pairs...but I only give those out to other people when needed, and I mostly stay with the lighter Fostex phones these days.
The Koss are great headphones, and that's why they isolate so well, 'cuz when you clamp then on, they're on!
I will use the Koss when the drummer is playing, and he gets a pair of them as well.
When that's all I had & used back in the day....OMFG...I use to have them on for like 12 hours at a time during long sessions. Honestly, my ears would hurt, not inside, but on the outside from how snug the Koss would fit...they would kinda' crush your ears after being on for hours.