Equalizer is a powerful tool not only for audiophiles with large on-ear headphones, but also a good way to pump up the simplest wireless earbuds. The application of the rules parameters is certainly of very high quality when listening to music or watching movies.
Always remember how straining the sound is with the equalizer on your iPhone or Mac.
📌 Thank you restore for useful information. 👌
How to Set Equalizer on iPhone
There is no EQ setting for all audio output in System Options. These settings are available only in some applications.
Of course, the option is in the standard utility Music.
► install app Music from App Storeif you accidentally deleted it earlier.
► Go to Settings – Music – Equalizer.
► Choose from 23 presets.
Unfortunately, manual frequency adjustment is not provided. The specified parameters will only work when playing through the application Music.
Equalizer settings on external players Yandex Music and Flacbox.
How to set up equalizer on Mac
On a Mac, like on iOS, there is no system equalizer to adjust all the sounds that are output. It is understood that this is necessary for a frequently encountered player. The option is available in the standard Apple utility.
► Launch application Music through search Searchlight or Launchpad.
► In the menu bar, select the menu item Window – Equalizer or wickist keyboard shortcut Command + Option (Alt) + E.
► Activate the checkbox On and select one of the preset settings.
In addition, you can regularly eavesdrop on audio frequencies with sliders and bring up your preset.
Source: Iphones RU

I am a professional journalist and content creator with extensive experience writing for news websites. I currently work as an author at Gadget Onus, where I specialize in covering hot news topics. My written pieces have been published on some of the biggest media outlets around the world, including The Guardian and BBC News.