MP3 Audio Gain and Equalizer is a free audio amplifier tool that offers an advanced equalizer. This app is designed to amplify and add audio gain to low volume music files, ringtones, or even recordings. With a simple and clean user interface, this app is easy to use and supports most popular audio types like mp3, m4a, wav, and others.

One of the standout features of this app is the ability to use the equalizer to control bass and other features in addition to the amplifier function. The preview tool enables you to select the start and end points across the file, giving you complete control over the audio file.

This app uses FFmpeg under permission of LGPL and is a great choice for anyone looking for a reliable and easy-to-use audio amplifier tool with advanced equalizer features.