Hi. This might be gravely the wrong message board for this kind of question but it might just be the right one on the other hand, sorry if my questioning is deemed inappropriate and my apiologies for the length. My question is about hearing. As an audiofan (hesitate to use audio"phile") I love my hearing. I am even more afraid of hurting my sons hearing who is a curtain climber of 17 months. How does hearing damage work? Does it slowly corrode over time? Or is it an all or nothing thing, you either chip those fine instruments in my inner ear or you do not? Does an evenings de-sensitivity to loudness indicate (or can it promote) hearing loss? IE: I start with the volume at 45 and it seems loud but by end of my listening session I've got it up to 55, my receiver calls the rating db, but I doubt it's exactly that many dbs, how would the receiver know? How many DB of what frequencies does it take to damage your hearing? Does your hearing naturally corrode with age? Are there guys in their 50s-60s and beyond still marveling at subtle details in strings over their speakers, or is the lifespan of the audiophile knowingly finite? Finally, are babies more sensitive to having their hearing damaged? My son seems to be utterly amazed by LFE when I pop in a movie, he loves it. But I take extra care not to get loud when he's in the room. I don't think I have any hearing problems for now, although I have better hearing out of my right ear. In my younger days I've gone to concerts and rave parties where most of the next day everything around me sounded as if it were on the other side of a pane of glass (accompanied by a low buzz) the phenomena would subside after several hours. I never get to that point with my own stereo. Any advice from an audiophile would be appreciated. Thanks for reading and any answers.