hi, all, I'm thinking about getting some isolation heaphones as I record in one fairly large room. If they really do cut out all external sound and just let you hear the monitor signal that'd be brilliant. But do they really work that well? How much external sound can they cut out? Can you be in a room with loud guitar drums etc and only hear through the desk? Anyone used them - what do you think? P.S if there's a thread on this already could someone point me to it?