Just announced on their Japan website is this upgrade to my UD 505NT. Instead of using the top of the range dual AKM DAC chips, it employs delta sigma upconversion of PCM to high speed 1 bit DSD. Adopted by Marantz for the SA10, KI ruby and latest CD players, PS Audio Directstream DAC, MBL and dCS ring dacs, I guess this approach has considerable merit. Would appreciate the thoughts of owners of any of the above as I have no experience other than the half way house software upconversion option on the NT 505 PCM to 512DSD. I prefer upsampled 8 times PCM but fine margins.
UD 701N
UD 701N