Musical Fidelity X-DACv3 

From a technical standpoint the X-DACV3 is just about the best DAC available in the world at any price. There are those which offer more facilities, or bigger flashier boxes, but if you want to take the digital output from a 16-bit CD player and get the most possible out of it, there is no better option than the X-DACV3. The X-DACV3 upsamples to 24-bit at 192k. It produces technical performance beyond 16-bit. Its noise ratio is about 120dB down and its linearity and distortion are at the theoretical limits. This is one kicking piece.