as a kid up to my teens i could walk past a house and tell if they had a tv on in their front room from hearing the whine. however years of gig photography standing near speakers duffed my ears up, to the point i was using some headphones one day and thought 'has the tweeter died on the right ear?'. messed about with settings etc, nothing. then i reversed the headphones - nope its not the headphones!<br><br>look after your hearing guys! and not just becuase listening to ultra loud music on your headphones on public transport is anti social :)