The house was full of people, the party was in full swing, but the speaker made such a gurgling sound! Everyone thought, "I guess the budget has been cut!" I was embarrassed. Later, I realized that it was actually the charisma of dust. I took a speaker cleaner in my hand and started the surgery myself. A little rubbing, a little wiping, and the speaker seemed to have a new life! Then when the song started playing, everyone said, "This is the real sound!" Then I realized that good sound also hides good care.
https://fixmyspeaker.org/ 