Most definitely it can be my hearing. Most likely you or someone else can hear something I cant. I mean I am almost 35, a couple rock concerts here and there, clubs, etc, I am sure I cant hear even close to 20KhZ any more! But then again, I am sure none of us can hear better than an instrument can measure. But that is the Golden Ear theory, that some people can hear what can not be measured or that some things sound better and dont measure better. My opinion is if it measures good it sounds good, if it measures the same it sounds the same.