When a headphone brand has a name like Harman associated with them, they don’t need to dabble in the flashy, trendy and/or cool that seems to be sweeping the rest of the headphone industry. They need to keep the same ridiculous level of quality the customer is used to, but throw in some new innovative features every once in a while. The K551 headphones from AKG (by Harman) are the perfect reference–and we’re not just saying that because they’re reference-class headphones. They’re packed with a 50mm driver for each ear that uses Real Image Engineering to create a realistic sound environment that feels like 3D space. The earcups are big enough to envelop your entire sound hole, so they also have great passive noise reduction. And they’re also packed with an in-line mic/remote and fold-flat engineering so they’re perfect for calls/tunes on the road.