BOOM 2 1.7

Boom 2 is an award-winning pro audio app that gives you finer, higher precision control over all the audio on your Mac, with a cutting-edge 31 band equalizer, an unbeatable volume booster, and a host of unique features for a pristine stereo sound experience. Features that truly enrich the sound experience on your Mac:
A Personalized Stereo Sound Experience with the Advanced 31-Band Equalizer: The state-of-the-art higher fidelity equalizer gives you complete control to adjust every minute detail of the audio, to make the stereo experience truly unique and exactly the way you want it to sound.
Experience Powerful Sound with the Volume Booster: Increase the volume beyond your system's regular limit to enjoy the true power of sound.
Crafted Audio Effects, to Shape Your Sound: Breathe new life into your sound, by adding ambience, increasing fidelity, shifting the pitch, and more.
Superior Stereo Sound Control: Increase the width of the stereo field and adjust the balance of the left and right channels, with the easy-to-use interface.
Sample Rate Control: Adjust the sample rate of the output device for pristine audio rendering, on higher-end audio devices.
File Boosting: Boost the audio to an appropriate level in your music or video files, individually, or in batches.
Wireless Control: Access Boom 2 from anywhere within your house or at work with the 'Boom Remote' app installed on your iPhone and iPad.
NOTE: Boom 2 does not work when AirPlay and FaceTime is enabled/running due to a technical limitation on macOS. Boom remains a must-have utility for me on my Mac laptop, and its improvements make it all the better." - Serenity Caldwell, iMore
"It truly feels right at home on Apple's new OS; almost like Apple designed it." - Owen Williams, The Next Web