iFi audio iPurifier 2 SPDIF

What does the iFi SPDIF iPurifier2 do?
This iPurifier2 regenerates the digital source signal 100% bit perfect. There is no up-sampling or resampling involved and the output signal always retains the same bitrate as the source signal. It supports both 2-channel stereo and surround sound data streams from 16-bit 44.1kHz to 24bit 192kHz. The input and output are either coaxial or optical (via mini-Toslink) so this iPurifier2 also acts as a coaxial to optical and optical to coaxial converter. No matter which S/PDIF standard is available or is preferred, this iFi SPDIF iPurifier2 allows music to sound in its full glory.

How does the iFi SPDIF iPurifier2 work?
Plug your S/PDIF (optical or coaxial) source with the supplied adapter cables into the iFi SPDIF iPurifier2. The incoming signal is precisely re-clocked by use of a Femto Master Clock, actively filtered and sent with a correct 75 Ohm impedance (coaxial) to a digital input on your amplifier or DAC. The coaxial signal is galvanically decoupled to both prevent interference from the digital source component and possible ground loops that is noticeable as a light hum in the background. The casing of this iPurifier2 is fully shielded to prevent unwanted RFI/EMI.