The Pro-Ject Audio DAC Box RS Final Edition DAC offers a rich switching set, which includes an I2S input with Master Clock, a balanced AES/EBU input, an optical Toslink, a coaxial input, and a USB-B port. The DAC is capable of decoding audio in DSD formats up to DSD128 and PCM up to 24 bit/192 kHz (24 bit/96 kHz for the optical input). The new product is based on a pair of Texas Instruments PCM 1792 chips and offers a choice of digital filters. Output stages - ECC88 Diamond selection high-end tube and solid state (switchable).