Standard sampling frequency converter chips continuously measure the input frequency and then generate the output frequency and the filter specifications accordingly. This results in coefficient "jitter" because the input signal sampling frequency jitter modulates the cutoff frequency of the digital filter. The SFC2 uses a fixed-ratio scheme where the output is directly derived from the input sampling frequency - therefore no coefficient "jitter", no filter modulation, more transparency.

The main function of the SFC2 will be integrating playback or outboard equipment into an environment that either runs at double- or standard-sampling frequency. To allow this equipment to be positioned anywhere in the processing chain, the SFC2 features two completely independent two-channel sampling frequency converters to simultaneously down- and up-sample a signal. Alternatively, it can also be used to convert the sampling frequency and reduce the wordlength of any two arbitrary audio signals at the same time.

Features are:
24bit single wire high-speed AES/EBU interfaces
20 / 16bit wordlength reduction
auto-blacking for dither noise
40bit floating point / 32bit fixed point processing
44.1 / 48 / 88.2 / 96kHz sampling frequencies supported
standalone 1hu 19" rackmount chassis

SFC2 Technical Data:
AES/EBU Input A & B:
Sampling Frequencies: 44.1 kHz, 48.0 kHz, 88.2 kHz, 96kHz
Maximum Input Wordlength: 24 Bits
Channel Status Data: Input accepts professional or consumer format.
Channel Status Bits
forwarded to AES/EBU output: all
Connector: XLR female

AES/EBU Output A & B
Sampling Frequencies: 44.1 kHz, 48.0 kHz, 88.2 kHz, 96kHz
Output Wordlength: 24 Bits
Connector: XLR male

Power:
Mains Voltage: 110 / 220 Volts with voltage selector
Fuse rating: 500 mA slow blow
Power Consumption: 40VA max