I have a set of klipsh klf 10's.If I crank them up one speaker sounds as if the woofer is blown.Vibration would be the only way I could describe it.If I squeeze the side panels against the rear panel it stops.Im assuming the cabinet is separating from the rear panel.It "looks" fine and theres really no movement when I squeeze it but it does stop the vibration.Is there anything I can do to repair this?