Boom 2 v1.5

Global Delight has released version 1.5 of its Boom 2 volume booster and equalizer app with a more robust equalizer and a few user interface refinements. The update introduces the Controlled Boost feature, which intelligently controls the system’s audio for optimal output while avoiding excessively high volume. Additionally, Boom 2 recalibrates audio to enhance the default speakers on your Mac with crisper sound. Earlier this year, Global Delight released Boom for iOS with features like 3D Surround Sound, Equalizer Presets, and an Audio Intensity Slider; Global Delight has now updated
it for iOS 10. ($14.99 new from Global Delight with a 25 percent discount for TidBITS members, free update, 11.7 MB, 10.10+)