Sometimes listening to the sounds of nature or the sounds of the people around you can be an enlightening experience, but sometimes it isn’t. As people who ride subways everyday, we know how necessary it is to block out the world sometimes just to keep your sanity—and hearing—intact. Besides sound quality, a good pair of noise cancelling headphones do two things: provide a comfortable fit for extended use, and also accurately cancel out unwanted outside noise. Without getting too technical , Active Noise Cancelation (ANC) is achieved by using built-in microphones that pick up what is going on around you. The headphones then produce their own out-of-phase sound waves that destroys outside noise. With so many options out there (and a lot of them quite expensive), how do you know which one is the right choice? For that, we enlisted the aid of the audiophiles over at our partner site, Sound Guys. They do a phenomenal job of diving in deep into the reaso...