The app is built around "magical" audio restoration technology, as noted by CNET in their 5-star review [4]:
The is a specialized Music & Audio app for Android designed to restore the high-fidelity sound quality often lost in digital music compression [2, 7]. Developed by FxSound, the app uses advanced digital signal processing (DSP) to improve bass response and high-frequency harmonics [3, 7]. Core Audio Enhancement Features dfx-music-player-enhancer-pro-15-1-apk-android-2022
Dramatically increases bass response without distorting playback levels [3, 7]. The app is built around "magical" audio restoration
Restores lost natural depth to tracks to create a more immersive listening experience [7, 10]. App Availability and Compatibility Restores lost natural depth to tracks to create
Compatible with Android 4.1+ devices and occupies a very small footprint (approximately 1.09 MB) [6]. User Perspective
Reviewers on the Amazon Appstore highlight its effectiveness for on-the-go listening with headphones, particularly for "resuscitating" the sound of older digital files [11]. However, some users have expressed frustration over the lack of recent updates and long-term support [11].
Recovers high-frequency details damaged during the MP3 encoding process [7].