I really like the idea of the HD600, it's just the impedance is keeping me from buying it. I guess it works it I only want to plug it into my amp but I'd want to use this with my iPad/iPod/Zoom and don't want to get an amp for it![]()
I have the HD600s and think they're fantastic. My experience is using them with a mixer or headphone amp and also a Fiio X5 music player that is designed for high impedence headphones.
But I find them pretty much unusable with a PC or laptop headphone output or a typical consumer level music player. Just too quiet.