前几年,把故障录音发给厂家,咨询了一下,这个回复的大概意思是,如果恢复正常了,就没事了吧。
We have received the answer from our R&D: "Sounds like rubb & buzz. Woofer moving parts were hitting or rubbing something. Can be caused by radial offset of voice coil position etc. If the symptom is now gone, I would not worry about it."