Soundsgoodtome
Headphoneus Supremus
Although I recommend 1-2wpc people seem to get joy from a O2 with them. Even at full price they're an amazing bargain for that ortho sound, a respectable one!
Huh, no wonder people like the HE-4 so much... Heck, 600mW into 32 is something the E12 can do unless I'm so tired my memory's shot.