Why don't iOS devices have a global equalizer for music?
Apple devices only have preset music equalization for music. It would be much better if you could eq your own music on iPhones and iPads. Spotify and other music vendors provide global equalizers for their music. Why can't Apple do it. Apple's music presets just don't do the job for me. Any ideas?
iPad (3rd gen) Wi-Fi, iOS 10.3.3