I have used all types of professional grade headphoens in the past, professionally i rely on the Sennheiser HD 280 pros, solid and true! But recently a buddy's kid was rocking these Incipio F38 over his head while at my house and it was unbelievable how loud they were even while he was wearing them. Sure they might not have been sealed off to well, but even when he took them off and i picked them up for a listen it was freaking amazing how loud they were from his ipod....my cents or two.first post FTW