Nope...I don't know how to gauge spl level. To me on my Nad comfortable speech level would be about a little over a 3/8 of the way. Not half way quite a bit below. Hope that helps it's the best I can describe.
BTW...I never experience the same effect on headphones. Since I mostly use ear canal headphones (Etymotics, Shures) I normally don't need to crank it up. Also I am quite sure I may have some but very very little hearing lost...I am a brass player :)
BTW...I never experience the same effect on headphones. Since I mostly use ear canal headphones (Etymotics, Shures) I normally don't need to crank it up. Also I am quite sure I may have some but very very little hearing lost...I am a brass player :)