The audio quality delivered by smartphones falls far short of the tolerance of serious audiophiles, but the V-Moda Vamp Verza helps bridge the gap between hi-fi and on-the-go audio. The new Vamp Verza is compatible with Apple products and a number of Android devices, including the Samsung Galaxy SIII. Dual digital-to-analog-converters (DACs)—one devoted to iPad, iPod and iPhone devices and another for USB audio input—bypass the built-in DAC of whatever device it is connected to, thus allowing the Vamp Verza, r…