The Nano iDSD BL uses a Burr-Brown PCM1793 Multibit hybrid DAC architecture which will do bit-perfect processing right up to DSD and including DXD.
The general range of decoding is actually excellent from lossy simply codecs such as MP3 up to DSD256 and including DXD 384/352.8kHz. It will decode PCM up to 32BIt/384kHz also. Importantly for TIDAL fans, it will handle MQA files natively using MQA 88.2/96/176.4/192kHz filters.
The Burr-Brown True Native® chipset means file formats remain unchanged or ‘bit-perfect’. This means you are listening to music as the artist intended in the format in which it was recorded.
At iFi we use Burr Brown extensively in our products having selected it for its natural-sounding ‘musicality’ and True Native architecture. Our experience with this IC means we know how to make the most of it.