logitech z506 sub woofer distortions at medium and high bass volume

[Anuraag A A]

logitech z506 5.1 multimedia speaker'system sub woofer sound gets distorted after half the volume ( bass volume)..

 

[jay32267]

It sounds like it might be blown. Either the coil is shot, or something is going on with the cone. Distortion is a sign of a blown speaker.