I've searched the web but didn't find anything about the Amazon Music Equalizer which could mean that you've misspelled the name of the software. Amazon Music works with a wide range of devices (portable and desktops) as well as Amazon's own devices, therefore the sound coming on speakers can be customized with the help of the other apps created for the platform you're using. For example, on Android, you can use other Equalizers to change the output sound for Amazon Music.