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Digital Coaxial Audio cable VS optical

Optical vs. Coaxial Digital Connections

Between optical and coaxial, which connection is going to give the better sound quality, and why?

A: " Better" is relative. In a harsh environment, optical may have advantages. By "harsh" I mean:

  1. Cable runs over 10ft
  2. Cable runs in close proximity to video and power cords emanating RF noise

In most cases, the above conditions would result in negligible impacts on the signal quality since the signal being transmitted (PCM or bitstream) is sampled at low frequencies (44-48KHz) and thus are more immune to noise impairments.

However, using optical cables can minimize the potential of the above mentioned problems and thus may help to reduce common mode noise. The only negative about using optical cables is the connection is not always as secure as a coax one, and can sometimes be compromised easily by moving components frequently. In addition, optical cables are usually more expensive than coax ones.

Bottom Line: Using optical cables for your digital connections may help minimize susceptibility of coupling RF noise into the line and reduce loss for long runs (10 feet or more). However, optical cables tend to be more costly and sensitive to abrupt external forces, which may potentially weaken the connection over time. In any event, either connection method should yield excellent and comparable results in most cases.

Blusmart Digital Optical Coax to Analog RCA Audio Converter Adapter with 3.28ft Optical Toslink Cable and 3.5mm Stereo Y Cable Splitter RCA L/R Output for Blu-ray DVD PS3 PS4 DC 5V Adapter
CE (Blusmart)
  • Converts Coaxial or Toslink digital audio signals to analog L/R audio, available for connection to an external device such as an amplifier via standard RCA-style...
  • Supports sampling rate at 32, 44.1, 48 and 96 KHz, perfect for Blu-ray DVD, PS3, PS4 or any other home or music audio converter and adapter.
  • 24-bit S/PDIF incoming bit stream on left and right channels, provides electromagnetic-noise-free transmission.
  • Come with 3.28 Feet Optical Toslink Cable, 3.5mm Stereo Y Cable Splitter and DC 5V Adapter, you can use it directly without purchasing any other cables.
  • Small size, easy to install and simple to operate. Fast delivery, friendly customer service with 1 year warranty. █ATTENTION: Only buy from Newpower so that you...

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