Reading over the six headphone-related blogs I filed for SoundStage! Global from the 2016 Consumer Electronics Show, in Las Vegas, I realized that this CES marked something of a watershed for the headphone market. Although I considered headphones at every price as I wandered the show, I found the most action and excitement in higher-end models designed primarily with sound quality in mind. That’s a big change of pace -- at the previous ten CESes I’d attended, the focus had been on mass-market headphones. But in January 2016, even the only new celebrity headphones I saw -- the Onkyo Ed-Ph0n3s, endorsed by Iron Maiden -- were meticulously engineered and tuned for high performance.