u/GloriousAsianDragon

https://preview.redd.it/xwkwpekg6hyg1.jpg?width=960&format=pjpg&auto=webp&s=838873b0b25d6cd124c29186c583d98ddb502c50

I noticed these black stains on my wires, is it burnt? Or sth else? It sounds fine though.