The new Ratoc Audio Lab RAL-DSDHA2 DSD & PCM 24bit/192kHz USB DAC ($2,000) is what its long name suggests—a USB DAC capable of handling 64x DSD and up to 24/192 data coupled with a headphone amp and digital preamp. There's also a Balanced Headphone Output and word clock BNC input. The RAL-DSDHA2 should be available by April 2013.