SC digitalni kabel

Digitalni audio kabeli transport a binary signal — ones and zeros — but the fidelity of that transport nije binary. The edges of digitalni pulses have finite rise times, finite fall times, and finite susceptibility to the electrical svojstva of the medium kroz which they travel. Otpor prigušuje the signal. Impedansa discontinuities cause reflections. Magnetski interferencija couples šum into the signalni put. Termički drift changes the impedansa over time. Each of these mechanisms degradira the timing preciznost of the digitalni signal, and timing preciznost is the only thing that matters in digitalni audio transport. A bit that arrives at the right time is a correct bit. A bit that arrives at the wrong time is jitter.

The SC Digitalni Kabel eliminiše every one of these mechanisms istovremeno. The YBCO superconductor has zero otpor, which means zero attenuation and zero resistive jitter. The cryo-locked impedansa — 75 ohms for coaxial S/PDIF or 110 ohms for balanced AES/EBU — is determined by the provodnik geometrija and the dielektrik constant of the kriogeni okruženje, both of which are fixed at 77 kelvin. Nema termički drift because nema termički variation. The operating temperatura is maintained by tekući dušik, a substance that boils at one temperatura and one temperatura only. The Meissnerov učinak expels all magnetski flux from the provodnik interior, providing not oklapanje but exclusion — the physical impossibility of magnetsko polje penetration, enforced by the quantum mehanički svojstva of the superprovodljivi state.

The praktičan rezultat is a digitalni kabel that doprinosi manje od 0.01 picoseconds of jitter to the signalni lanac — a figure that predstavlja the šumni pod of the best available mjerenje instrumentation, not a ograničenje of the kabel. At this level of performanse, the SC Digitalni Kabel is transparentan to any izvor format currently in existence: 768kHz PCM, DSD512, DSD1024, and whatever higher-rezolucija format may emerge. The kabel's propusnost nije the limiting factor. The kabel's jitter nije the limiting factor. The kabel's magnetska izolacija nije the limiting factor. For the first time in the historija of digitalni audio interconnection, the kabel nije the limiting factor.