Add a digital input to your Audio Research i/50 with the DC1 DAC card. The DC1 is flexible, with RCA, Optical and USB inputs, plus Bluetooth streaming. The sound of the DC1 is transparent, dynamic, detailed, and fully fleshed-out; the presentation is grainless, with a lovely focus and texture, regardless of which input is used.
USB - All standard PCM sample rates up to 384kHz, with 8, 16, 24, or 32 bit samples. DSD64 and DS128 (DSD 1x and DSD 2x). DoP64 and DoP128 (also known as DoP 1x and DoP 2x).
Bluetooth - 48kHz, 24 bit upsampled to 211kHz, 32bit.
Optical - up to 48 kHz 8, 16, or 24 bit samples, upsampled to 211kHz, 32 bit.
Coax - up to 192kHz, 8, 16, or 24 bit samples, upsampled to 211kHz, 32bit.