After nearly four decades of research experience by iFi’s Chief Designer Thorsten
Loesch, iFi audio created an elegant and highly effective solution to eliminate jitter
once and for all - the SPDIF iPurifier2. This petite accessory is here to stamp out
S/PDIF jitter, fully restore the compromised signal's integrity, rejuvenate sound
quality, and create an increased warmth, depth and dynamic contrast.
When an audio source transmits the signal, the receiver should know when every
sample arrives. A word clock is necessary to perform it correctly. S/PDIF carries an
embedded word clock signal within the digital data, which allows a receiver to
match the clock with the source and interpret data correctly. Sadly, that enclosed
clock information can be of low quality or degraded by physical properties of a
cable in the pipeline. Even the tiniest frequency difference of 1ppm may translate
into a complete disaster when sending heavy files.
This superior Femto clock regenerates a stable, high-quality signal coming from a source device. Thanks to restored timing integrity the signal delivered to a receiver is not degraded by physical properties of a source product or a cable in between. It also serves as an internal buffer to perfectly time the bitstream.
The optical/Toslink input boasts the premium galvanic isolation technology, where electrical circuits are
separated to eliminate stray currents. Audio signals can pass between galvanically isolated circuits to block i.e. differences in ground potential or currents induced by AC power.