Hello Rja,
The DAC-S is $5000 with 5 years warranty included. Yes, it does have a remote volume control with 0.5dB step. It comes with 192/24 capable USB based on a highly upgraded hiFace from M2Tech with linear power, 2 coaxial RCA (75 Ohm) and one AES/EBU (110 Ohm balanced) digital inputs. Both USB and built-in upsampler are asynchronous. Please note that the USB allows for device DMA when paired with J. River Media Center and ASIO4ALL which allows for much better results compared to Kernel Streaming, WASAPI and Apple based solution, all IMHO of course! The analog output stage is Lundahl-transformer-coupled (Amorphous core), has no negative feedback, no OpAmps and can drive most headphones direct.
Best,
Alex Peychev