hp elitebook 8570p headphone issue

Hello all,

I have an HP EliteBook 8570p, when I connect my headphones the volume is very low and if I try to raise the volume up it is still very low and has static. The build speakers works perfect the problem is the headphones, I also try connecting different headphones and I get the same responsed. i try playing with the sound settings but i cannot figure out what to do?