Digital Coaxial Audio Cable 0.8m - RG6 Quad Shield 75 Ohm, Gold Plated RCA

Product Overview

A premium-grade digital coaxial interconnect, 0.8 metres long, with one gold-plated RCA plug at each end. It is built on RG6 quad-shielded cable – a 6 mm jacket carrying an oxygen-free copper centre conductor, a foil-and-braid quad shield and an aluminium-mylar wrap. The jacket is printed QUAD-SHIELD 75 OHM DIGITAL INTERCONNECT, which is exactly what it is.

The reason to use a proper coaxial lead for digital audio is impedance. An S/PDIF signal is a high-frequency waveform, and it is specified to travel down a 75 Ω line. A general-purpose RCA patch lead is not impedance-matched, so the signal reflects back along the cable and the receiving DAC has to work harder to recover the clock. This lead is a true 75 Ω RG6 coax, so the waveform arrives intact.

Please check what you are connecting, because it is the one thing to get right. This lead carries ONE channel. If you are connecting a stereo pair – a left and a right – you need two of these, or a twin lead instead.

Where a single channel is exactly right: digital coaxial audio (S/PDIF) between a CD player, streamer, console or TV and an amplifier, soundbar or DAC; a subwoofer feed, because the LFE channel is mono by nature; and the yellow lead of a composite video set, which is one RCA on its own. The wide bandwidth also suits RF and video runs.

At 0.8 metres this is the length for gear that lives together – an amplifier and a disc player on the same rack, a console beside the TV, or a subwoofer amplifier sitting next to the receiver. Short runs keep the signal path tidy without a metre of slack coiled behind the cabinet.