Is there a clock in the Scarlatti Upsampler which can be used?
The clocking arrangement of the Upsampler is very flexible and very sophisticated. There are the following options: When set to USB input and with no wordclock input Upsampler will operate in Master mode. However, with Wordclock selected as reference the unit will accept a wordclock at 32, 44.1, 48, 88.2 or 96kHz whatever the input or output sample rates are. As the accuracy of the Upsampler in master mode is only +/-10ppm, there can be advantages in locking the unit to an external wordclock. In a system containing a Transport and a DAC, there are two options : Use the Transport as Master device – this is most appropriate when upsampling to 48, 96 or 192kS/s. Connect the Wordclock out from the Transport to the Wordclock in of the Upsampler and choose wordclock as the sync input for USB and (optionally) whichever input is being fed from the Transport. Connect outputs from the Upsampler to the DAC as desired, not forgetting the wordclock cable – especially if you intend to use 1394. Use
