A free app for Android, by Good Ringtones Studio.

Loud Ringtones is a free app that will let you find the loudest ringtones for your Android phone. The application is very easy to use, and you will only need to press the play button to listen to different music. 

If you like one of the MP3 music you can set it as your default ringtones, alarm clock ringtone, or notification tones.

You can set the loudspeaker background as your live wallpaper! Now comes with 3D particle effects!

The application is designed for 99% of Android devices, and you can use the application on any device that is compatible with the Android operating system.