대부분 스피커 이렇게 되면 버릴까?
<iframe width="1840" height="1035" src="https://www.youtube.com/embed/aiPZYzqS_3c" title="스피커 엣지 교체 방법과 요령 -중대형 유닛 풀버전-" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>

