iFi Audio GO bar

The iFi GO bar connects to your computer or phone and gives you better headphone sound on the go. iFi Audio has developed a keen reputation for packing lots of power into a small package — and this might be their most impressive trick yet. The iFi GO bar headphone amp/DAC combo is just a bit larger than a typical thumb drive, but it can deliver up to 7.2 volts of output. I auditioned it for a few weeks, and it delivered top-notch sound to everything from professional in-ear monitors to extra-large over-ear headphones. Plus, it comes with the cables needed to connect to most newer laptops, iPhones, and Android devices. The GO bar draws the power to operate from your computer or smartphone, and its built-in digital-to-analog converter bypasses the connected device's inferior audio circuitry. I could pull this ultralight device from my pocket or laptop bag anywhere and enjoy the sound quality and performance of a beefy, bona fide desktop component. iFi built this portable USB DAC to handle life on the go — an...