Best app for sound increase

Well i bought a macbook pro couple of months ago and i really wasnt happy how loud the speakers went. I did some research and this app came up to be the best to raise up the volume. I downloaded it and what you know it does what its supposed too! It literally raised sound 2x as powerful now. Happy with the purchased.

Mando5520 about Boom2:Volume Boost & Equalizer, v1.4.3