I have been comparing the numbers on the current DAC chips and the Burr Brown (TI) 1794A has my attention. It has a S/N of 127 dB in stereo mode and 132 in mono mode. It has an "advanced segment" architecture and seems to be one of the better, if not the best, 24 bit DAC ICs in production. I have seen some custom and DIY designs that measure extremely well. There are also a number of Chinese made 1794A-based DACs. Both dual and single versions are available. However, I cannot find any reviews of these online. There is one model that has a single 1794A by "FX Audio" that uses an external wall wart power supply. There is a dual 1794A model with dual power supplies by "Breeze Audio". All of these are available on Ebay in a range of prices, but all reasonable for a high quality DAC. I would appreciate any discussion of PCM1794A DACs. Especially reviews and/or comparisons to other DACs. In particular multi-bit models.