Sony PHA-1 Portable Headphone Amplifier and USB DAC

The Sony PHA-1 Portable Headphone Amplifier and USB DAC can be used for portable audio playback from analog and digital audio sources such as compatible computers or iOS devices. It has a built-in digital to analog converter with asynchronous digital transfer to reduce jitter. It supports sampling frequencies up to 24-bit/96kHz. The PHA-1 has a micro-USB input for use with compatible computers as well as a dedicated digital input for iOS devices. It also supports analog audio sources via its 1/8" stereo mini jack input.