^ the fact that they both represent their sound signature AND the characters are actually wearing them is very fitting . Although I'd say DT880 on the left just because it's not fair to the T1 to say it's in the same league as the HD650 IMO.
This means you need to Eq, or look for an other headphone with a frequency balance that suits better your taste. . Unless you are looking for head crushing bass. I consider that when I have to pump up the volume so that music begin enjoyable, then there's something wrong in the frequency balance.