all components are imperfect. some may may function as tone controls, especially tube preamps, whose circuits are tube sensitive.
so, an appropriate tube preamp may solve your problem. on the other hand, other cd players may provide certain attributes which you may feel feel are absent.
in what respect are you dissatisfied with the sound of your stereo system ?
so, an appropriate tube preamp may solve your problem. on the other hand, other cd players may provide certain attributes which you may feel feel are absent.
in what respect are you dissatisfied with the sound of your stereo system ?