Audio Cables: S/PDIF Cables

eiodotcom —  August 1, 2012 — 6 Comments

Today’s Eio post is on Audio Cables, specifically S/PDIF Cables.

S/PDIF Cables

S/PDIF stands for “Sony / Philips Digital Interconnect Format” cables. This is a type of digital audio interconnect cable, mainly used for small consumer and everyday audio equipment use. It outputs audio over reasonably short distances, using either coaxial cables with RCA  connectors, or fiber optical cables. These also are able to link up with home theater systems.

According to Wikipedia, “A common use for the S/PDIF interface is to carry compressed digital audio as defined by the standard IEC 61937. This mode is used to connect the output of a DVD player to a home-theatre receiver that supports Dolby Digital or DTS surround sound. Another common use is to carry two channels of uncompressed digital audio from a CD player to a receiver. This specification also allows for the coupling of personal computer digital sound (if equipped) via optical or coax to Dolby or DTS capable receivers. This only supports stereo sound, unless the personal computer supports a surround sound encoding such as Dolby Digital Live or DTS Connect.”

Our Eio catalog carries many forms of S/PDIF cables.

Length differences

Here’s a 12 foot cable: Cables To Go 29116 12ft Velocity™ S/PDIF Digital Audio Coax Cable

The Velocity digital audio cable is a great upgrade to the cables typically included with consumer electronics products. The low-loss 75 Ohm oxygen-free copper center conductors and foam dielectric provide high quality digital sound and performance. The 100% aluminum foil and dual OFC braid shields protect against unwanted noise and interference.

Robustly constructed molded connectors attach to an ultra-flexible jacket, and enable easy installation and identification. The 24K gold-plated, durable connectors ensure long-lasting quality; fully molded connectors provide excellent strain relief.

Connector 1: RCA Male
Connector 2: RCA Male

Here’s a 100 foot cable: Cables To Go 29729 100ft SonicWave™ S/PDIF Digital Audio Cable

The Sony®/Philips Digital Interface is the ôred bookö standard for digital audio signal transfer. A S/PDIF coaxial cable can carry linear PCM or multi-channel Dolby® AC-3/DTS® digital content. The SonicWave digital audio cable features proper characteristic impedance, fast frequency-independent signal propagation and effective shielding against EMI/RFI. This interconnect uses smooth, flawless, large cross-section silver-plated OFC as the signal conductor.

A nitrogen-foamed PE insulation exhibits extremely low dielectric constant. Cu Shielding Technology™ provides three layers of shielding: two 80%+ OFC copper braids and one 100% overlapped Mylar® foil. Precision design and manufacturing ensures the characteristic impedance of the cable assembly remains 75 Ohms, +/- 5 Ohms.

Precise soldering techniques using expensive silver solder create increased electrical integrity, maximum signal transfer, long term reliability, and guarantee performance under the most demanding conditions. The Flexcable™ ultra-flexible PVC jacket enables easy installation, and resists binding and kinking which can cause errors in the signal path. This high performance S/PDIF digital cable is also ideal as a premium, extended length composite video cable for especially demanding video applications!

Connector 1: RCA Male
Connector 2: RCA Male

See also:


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