Subwoofers making noise

[sovietking101]

I had gotten this 5.1 surround sound system from my dad. It is pretty generic but has powerful bass. When I play bassy songs the sub woofer gives off whistling noises if its too loud. Is there a way to modify the box assuming the port is too small or something other?

Thanks in advance

 

[ashmedai]

Insufficient information...

 

[Nighted]

I think it's more than enough information.

Sounds to me like there's a crack or a hole somewhere and air is being forced through it. Only way to stop it is to find out where it is and seal it.