Coaxial and optical digital audio cables are two common types of audio cables used for transmitting digital audio signals. Both types of cables have their advantages and disadvantages, and the choice between the two ultimately depends on personal preference and specific audio needs.

Coaxial digital audio cables consist of a single coaxial cable with a copper core and a shielded outer layer. They are often used for connecting audio devices such as CD players and televisions to receivers or amplifiers. Coaxial cables are popular due to their affordability and ability to transmit digital audio signals with relatively high fidelity.

One of the benefits of coaxial cables is their ability to transmit longer distances without signal loss or degradation. Additionally, coaxial cables can often be found with versatile connectors, such as RCA or BNC, making them easy to connect to a variety of audio equipment.

However, some users have reported electrical interference or noise that can occur with coaxial cables. This interference stems from other devices in the environment. Coaxial cables are also susceptible to electromagnetic and radio-frequency interference that can affect audio signal quality.

Optical digital audio cables, on the other hand, use fiber optics to transmit audio signals. The cable is composed of a core of light-transmitting fibers surround by protective material. The light is then converted back to an audio signal at the destination point. Optical cables eliminate the need for electrical signals and eliminate the potential for electromagnetic and radio-frequency interference.

Another advantage of optical cables is their ability to transmit audio signals in a lossless format. This means the audio signal that is received at the destination is identical to the source signal, without any distortion or degradation in quality.

However, optical cables can be more expensive than coaxial cables, and they are more fragile as the fiber optic core can get damaged if bent or twisted too much.

So, which option is better? It ultimately depends on the specific use case. If the audio equipment is located in a noisy electrical environment, an optical cable may be the best choice. However, if long-distance transmission and cost are more important factors, a coaxial cable may be the better choice.

Overall, both coaxial and optical digital audio cables are excellent options for transmitting digital audio signals. It is important to evaluate the specific requirements of the audio system before making a decision.