Is it just a fault with the phone then?
I'm not sure - can't see any other people apart from yourself with this problem.
Not sure if it's because I'm comparing it to my iPhone.
A lot of people here are saying that 75% volume is ear-splitting which is simply not the case on my handset.
To put it into perspective - on the tube - if my iPhone was up to around 65% I'd feel conscious that other people could hear the noise. With the SGS2 at full blast - I have no concerns at all...