This means that music from iTunes and Spotify, videos from QuickTime, and movies streaming from Netflix and Hulu will now be louder. Option #1: System-Wide Volume Booster & Equalizer (Paid)īoom 2 is an incredibly intuitive and beautifully designed volume booster and equalizer that works system-wide on Mac OS X, specifically for Yosemite. Turns out, there are a few different ways to boost a Mac's volume level, some of which work system-wide, and others that are app-specific. I didn't do anything about it at the time, but then I realized that I should be able to crank up the volume to any unsafe level I want. External speakers would help, but I don't want to buy them or lug them around every time I want to watch a movie. While I had no complaints about the screen size, I did have an issue with how low the audio coming from my speakers was. During a power outage at my apartment this year, I watched movies on my MacBook Pro instead of on my television.