Crackling sound from the speaker above the island notch of Apple iPhone 15 plus.

When i play music with bass and high bits on full volume on my iPhone 15 plus bought just 10 days back from this post published… I felt my phone was defected and even visited iPhone service centre for the same issue, they said they have to send it to the main headquarters in Bangalore for repair & i didn't do the backup so had to get it back home for the same, that evening I just visited 3 stores namely Croma porvorim, reliance porvorim & reliance Margao and played music in their demo iPhone 15 plus phone and the biggest revelation was all the iPhone 15 plus had same crackling sound on their speaker above the island display notch. Please fix this issue in an immediate update dedicated to this issue if its possible with a software update… else please replace everyones phone speakers.