Fiber and Coaxial: differences and use in amplifier

EmmaStone

Member
The interface required for transmission behind the table means what interface is needed to enjoy these audio tracks. After the HDMI unified audio and video interface, the optical fiber and coaxial are gone, but it is more common on some low-end products, but for the price,there are still fiber and coaxial coaxial interface in many amplfier models. the feature of being able to transmit audio separately, and it has certain use value, especially in TVs and echo walls, because most models only support AC3 and DTS decoding.

(PS. S / PDIF (Sony / Philips Digital Interface) is the basis of optical fiber and coaxial audio protocols)

Bluetooth, wifi, Airplay

As for Bluetooth, wifi, Airplay and other functions, it is for connecting a mobile phone to stream music. It is not suitable for connecting to a TV, and it cannot transmit multi-channel audio source code.

Optical fiber interface and coaxial interface

Optical fiber interface and coaxial interface​

About ARC and eARC:

The function of ARC and eARC is to use the TVbeyond fiber and coaxial itself as the signal source, you can use only one HDMI to transmit audio back to the amplifier or sound wall. If you use an external box and disc player, game console, ARC and EARC are not necessary, I The information found is based on EAC3's Dolby Atoms, which can also be passed back using ARC.

However, eARC has the advantage that it can ignore the video pass-through capability of the soundboard or amplifier. Although eARC was announced with HDMI2.1, some HDMI2.0 products of 19 years can also be supported, the optical fiber and coaxial coaxial are still work for old amplifier even now.
 
Top