For Mac App Store users facing issues with volume boosting, please follow these simple steps and update the audio component:
-> Open Boom's main interface and click on the 'Know More - Mac Volume' tab given on the bottom. -> Click on the 'Know More, Here' button. This takes you to a page containing the latest audio component. -> Download the file and install it. This enables the system-wide volume boost feature. ->Once the installation completes, you will have an option to restart your system. -> Enjoy booming!