Was unable to save custom preferences, and while the presets worked fine, I disliked having to reload a video if I decided during play to equalize the sound. Finally uninstalled the app, as it was also keeping sound from playing on a non-YouTube site (I narrowed it down by reopening Firefox in safe mode to make sure that was the cause). Good app but seems to need work.

Whenever I try to watch steaming videos on cytu.be, this addon made it so no videos load.

As user friendly as the addon seems, it ran slow and made the audio sound distorted (in my case at least). I wouldn't use this for bass boosting any audio or music.

Broke audio playback on bandcamp.com

overall it's working as expected. but it's not compatible with YouTube 1.5x speed. When this plugin is enabled, Youtube plays at 1x speed no matter what speed you choose.

Has many frequencies to tweak. However, it reduces loading times for YouTube, other streaming broadcasters, and Prime videos on Amazon cannot load when it is enabled on my Windows 10 desktop. There is also similar, but less severe problems with Windows 7 desktop.