what's the problem? having the volume control in the middle of its range is a good thing. Do you need it to be louder than it is at the maximum setting?
it is true that some albums - cd's, too - are lounder than others.
my cd player is much louder than my phono preamp, and I suspect that is common, that most cd players have high output levels. some preamps and receivers have trim pots on the inputs so you can make them all about equal in volume. yours doesn't, so you have to use the volume control when you switch inputs. There are worse fates.
it is true that some albums - cd's, too - are lounder than others.
my cd player is much louder than my phono preamp, and I suspect that is common, that most cd players have high output levels. some preamps and receivers have trim pots on the inputs so you can make them all about equal in volume. yours doesn't, so you have to use the volume control when you switch inputs. There are worse fates.