Boom Volume Booster for Mac
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Boom is a simple volume booster app for Mac that boosts the system-wide volume and also provides a sound equalizer option.

Boom can boost the audio in the music/video files, which can then be synced to the iTunes and ultimately listen to the boosted audio on the iPhone/iPad.

Boom works on the system level and so is independent of any running media app. Thus Boom can help boost the audio output if you are watching a video on YouTube, making a Skype call, watching a movie on Netflix, listening to online radios or enjoying movies and music on the iTunes.

Recent Milestones
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Boom Volume Booster for Mac — Notebooks.com's Award for Best New Mac App (1/31/11)

Posted 3/15/12 at 4:12am via notebooks.com
Boom Volume Booster for Mac — Won the Macworld Best of Show 2011 Award (1/28/11)

Posted 3/8/12 at 10:48pm via macworld.com