Solved! The centre speaker connection is giving a scratching sound,

[add.dj.jason]

When i play music Only the centre speak starts a scratching sound if i remove the connection its stops. How can i fix tht?

 

[americanaudiophile]

You need to determine whether the problem is in the centre speaker itself or the system. You can do that by connecting another speaker to the centre channel speaker wire. You can use any of the other speakers but make sure that no unused speakers wires are shorting out by putting some tape on them.