No specific info about version 4.0. Please visit the main page of SpeakerAmp on Mac Informer.
It helps you analyze, increase or reduce the volume of MP3 files.
Provides you with additional control over audio sources in your system.
Control the volume of your applications independently.
Equalize is a 31-band graphic equalizer for Mac OS.
Fugoo Speaker Update will update the firmware and settings on Fugoo speaker.