USB Audio Class 2.0 provides a dramatic improvement over USB Audio Class 1.0 with the addition of 24 bit audio, sample frequencies up to 192kHz and the ability to scale to large numbers of input/output channels.

XMOS has developed a USB Audio Class 2.0 software framework design to work on XS1-L devices. The design provides certified USB 2.0 High Speed device and Audio Class 2.0 device class implementations with configurable digital audio interfaces, peripherals and the ability to integrate audio processing.