speakers

I have just got new logietech speaker I was advised to buy them as my speakers on my computer was to weak now why I play miusic [eg egals] I can't hear the main singer properly it like the singers far away but the backing good how do I go about fixing the prob pls kato

Did your speakers come with an instruction manual? Can you access any option screen for altering the sound?
It may also be your player or the mp3 your listening to. You could try out different ones.