Well this is a pleasant segue...
One of our cats, Pippin (we called him that 'cause he gets himself into all kinds of messes), likes to watch TV. Doesn't matter how loud it is, either. And it's not like Pippin just sits there passively (like our other cat who couldn't care if a mouse sat on its face), he actually follows the action with his head. Funniest thing is when when there are birds chirping, or something similar, and he'll start following the surround sound around the room. With surround music he's a little discombobulated too, but not like when we're watching movies.
Haven't tried music at a certain volume level, though. I wonder if there is something about that 95dB point and a cat's hearing. Any vets out there have any ideas?