Audio signals must be converted from an electrical signal to an optical one before traveling through the cable. Once the converted signal reaches the receiver, it is converted back into an electrical signal. Optical cables tend to be more fragile than their coax counterparts; optical cables can't be pinched or bent tightly, for example. The ends of an optical cable use an odd-shaped connector that must be inserted correctly, and the connection is usually not as tight or secure as a coaxial cable's RCA jack.
Optical cables are not susceptible to RFI or EMI noise or signal loss over distances, because light does not suffer from the resistance or attenuation that occurs in copper cables. Like coax cables, optical cables do not have enough bandwidth to carry lossless or uncompressed audio formats, such as those used on Dolby surround sound systems.
The decision about which cable to use should be based on what is available to you. Not all audio components can use both optical and coaxial cables, and HDMI is increasingly the standard for most home entertainment systems and components. Some users prefer coaxial over optical because it can support slightly higher resolution audio, but those differences are likely only noticeable on very high-end sound systems, if at all. As long as the cables themselves are well made, you should find the sound they produce to be indistinguishable.
HDMI cables transfer both audio and video. If your equipment supports HDMI connections, you should use it. Actively scan device characteristics for identification. Use precise geolocation data. Select personalised content. Create a personalised content profile.
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The outer coaxial cable provides added strength and durability compared to a regular audio cable. These cables are a necessity for any professional home audio system to maintain sound quality. Perfect for use with any type of speaker or subwoofer , with lengths ranging from 75 cm up to 6 metres.
Some available cables are specifically for use with subwoofers, providing a secure connection and high audio quality. These digital cables come in predetermined lengths with plugs already attached, however Selby also offers pre cut cable for manual wiring. Home Cables Coaxial Digital Cables. Your TV might have a coaxial out on the back. To send the audio to an amplifier or AV receiver. Although, newer TVs often seem to have an optical output for this purpose. As long as you have the same type of input on your amplifier.
It is recommended to use a ohm coaxial cable to transmit digital transmissions. This will help to avoid errors in the signal. Like a composite video cable. I think a proper coaxial cable is best in this situation. Of course, you may be relocating your equipment and the cable that you were using is now too short.
Of course, you will also need another coaxial cable! The manufacturer says the ones pictured above are suitable for a digital audio RCA cable. I have used similar connectors in the past without problems. If you are going to buy a different brand, then it might be worth checking that they are suitable for a digital audio RCA cable before you buy.
The one pictured below takes a coaxial digital audio output e. Other converters will do this conversion the other way around, so check carefully before you buy to make sure you get the right one that you need. These receive the digital audio output from your device that is generating the sound. As I explained previously, there are two main types of digital audio output — coaxial and optical. If your output device has a coaxial RCA audio connection, then it is easy to connect this to the RCA input on your amplifier.
Job done. Give yourself a bit of slack for re-routing the cable in the future — or if you move your equipment. But try and get roughly the right length for the job in hand. Avoid buying a 10m cable for a 2m distance.
Go to this article for some more home theater wiring tips. However, if your amplifier only has a coaxial RCA input, then you will need to convert the connection from optical to coaxial.
What if you wanted to send a single coaxial digital audio output to two different playback devices? All you need to do is connect the single male RCA to your coaxial audio output.
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