iPhone sound quality
iPhone seems to be missing a built-in audio equalizer, or I’m just failing to find it. The audio quality is usually quite good, but with some earbuds and headphones it could benefit from some adjustments. I listen to music on Amazon, Spotify, and Apple Music, but there seems to be no way to adjust the sound from these without paying through the nose for a subscription to an AppStore app.
iPhone 13 Pro, iOS 15