ARC is the acronym associated with HDMI which defines a particular cable that is used in the distribution of signals in reference to the management of the audio signal. ARC actually stands for Audio Return Channel. But let's see what an HDMI ARC cable is for and why it is useful, if not essential, when you want to install a perfect home theater with a perfect soundbar in a home or professional structure.

With a single cable, HDMI ARC, the signal passes in two directions from a device to a player and vice versa, which without such a cable is managed by a combination of antenna and receiver. With HDMI ARC cables, therefore, the number of cables between the television and the audio system decreases significantly, without losing quality.

Not all HDMI cables have this function, you should know that only HDMI 1.4 or higher category can support this technology.

Let's look at a practical example of home theater. In the case of a traditional system for a television, the antenna is the channel through which the audio and video signal is received, which is then forwarded to a receiver or amplifier via the HDMI cable , for distribution to the amplifiers. In the case of an HDMI ARC, the receiver directly directs the signal and distributes it between the TV and soundbar.

In the case of complex systems it is always advisable to check the compatibility of an HDMI ARC cable before installing it.

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