Coaxial Speaker Cable: Complete Guide

Coaxial speaker cable: Although cables are frequently disregarded in the realm of home audio, many audiophiles discover that cables can significantly affect their sound quality. The fundamentals of coaxial speaker wire will be discussed in detail in this article.

The sound of your music can be significantly improved by using a high-quality coax speaker wire. The proper cable can help to ensure that your music sounds crisp and clear while also giving your speakers the power they require to perform at their top.

What is Coaxial Speaker Cable?

An electrical cable known as a coaxial speaker cable uses radio frequency (RF) signals to transport audio from an input source to an output device, such as speakers or home theatre equipment. Coaxial cable’s transmission bandwidth extends from 20 KHz to 300 GHz.

Coaxial Speaker Cables carry audio without being hampered by outside electromagnetic interference. As a result, the speakers will produce audio that is clearer and more audible.

The mids, highs, and lows would be better, and the audio would be more alive.
For instance, a coaxial cable with RCA connectors is used to send the signal to S/PDIF audio connectors.

It goes by the name Coax Speaker cable as well. Coaxial is frequently substituted with the word Coax.

TV antennae, modems, and cable boxes all have speaker cables in addition to being used to carry audio and video signals.

The cable was initially employed in 1858, but it wasn’t patented until 1880. The cable quickly established itself as the norm for communications in homes and offices.

Copper wire was twisted together to create the first cable. The first coaxial cable’s waveguide was made of metal wire.

By the middle of the 1800s, a solid metal tube with the same diameter as the coaxial cable had taken the role of the wire.

A connection to the centre conductor of the coaxial cable was made possible via a tiny hole in the metal tube’s core.

Television signals were transmitted using the first coaxial cable. It was the first useful method of sending TV signals.

Since a coaxial cable is immune to interference and may be used to convey the signal, it is more practical for sending signals over long distances. The cable was made flexible and durable by the metal wire.

Components of Coaxial Speaker Cable

The centre conductor is the first part, and the metal wire inside the cable actually carries the signal.

The four elements are as follows:

  • Conductor at the heart of the circuit
  • The dielectric insulator
  • A metal-encased helmet
  • PVC-coated outerwear

Copper is frequently used for the core. This line serves as both the cable’s ground and the path for the transmission. Additionally, stranded copper and steel with a copper covering are frequently employed.

The core conductor is encircled by a dielectric insulator. This insulator’s component parts might be made of plastic, foam, or air with spacers. A PVC-coated sheath that is often flexible and stretchy makes up the outer layer.

The most common material used for shields is copper braided wire. Sometimes the material is silver-plated wire.

High-quality cables often have an aluminium foil shield and braided copper wire. With two layers of aluminium foil and two layers of braided copper wire, shielding can be as many as four layers thick.

The cable gets thicker and less flexible, which isn’t necessarily a desirable thing, but losses are decreased and improved.

The last layer, PVC, is commonly referred to as a “jacket.” When building the jacket, you can also utilise materials that are water-resistant, oxidation- and UV-resistant, or fire-resistant.

Both optical fibre cables and cables with wire-bound and twisted-pair wiring will have unique jacketing. Almost all cable installations use cables with a PVC jacket.

Connectors attached to conductors and terminals are typically used to terminate cables. There are many different kinds of cables available.

Types of Coaxial Cables

Coaxial Ethernet networks, TV hookups, and other types of cabling systems all use standard coaxial cables to carry data.

Coaxial cables come in a wide range of varieties depending on factors including impedance, thickness, construction, use, type of dielectric, kind of connectors at each end, and more.

Knowing what kind of coaxial cable you are using is crucial before putting it in the cable plant since the type of coaxial cable to choose depends on the use area.

The performance and cost of a coaxial cable are mostly influenced by the kind of cable.

Let’s examine the various coaxial cable varieties:

RF vs RG Coaxial Cable Types

Early cable TV and radio broadcasts gave rise to the terms RF and RG coaxial cable types. RF, which stands for radio frequency, was created when cable television first came into being and was intended to carry analogue signals in the majority of home video setups.

The RG abbreviations come from the now-outdated military specifications for “Radio Guide.” The numbers given to them are neither sequential, random, or in accordance with the original RG requirements. However, today’s figures are tailored to application needs.


Radio frequency (RF) coaxial cables are used to transport the signals. especially for software that generates radio waves in the several megahertz range. They are recognisable by the well-known single pin that fits into the RF input on a device and are thought of as the typical input cable for TVs.


Larger conductors used in RG-6 coaxial cables are intended to improve signal quality and handle GHz level transmissions more efficiently. They are constructed from thicker gauge wire with insulation and shielding calibrated for high-bandwidth, high-frequency transmissions seen in cable TV, satellite TV, and internet connections.


AWG wire in RG-59 cable is smaller and lighter. RG-59 has been around for a long time and was initially used for cable TV connections. Older homes and commercial office buildings tend to contain it. For signals with low bandwidth and low frequency under roughly 50 MHz, including analogue video and CCTV installations, it is advised.


RG-11 cable is the thickest coaxial wire available. When it comes to flexibility, it might be challenging to deal with. Although it does not have as much attenuation as RG-6 or RG-59, it is still perfect for applications that carry data over greater distances.

Which Connection Types Are Used with Coax Cables?

Depending on the application, different cables call for different types of connectors.

Coax connectors come in a wide variety, but the following are the most often used types:

BNC connectors are utilised in RF and video applications. Other connectors include N-Connector, SMA Connector, F-Type Connector, and RCA Connector. It can operate at frequencies up to 10 GHz, remains stable until 4 GHz, radiates a signal, and experiences increasing losses.

Up to 18GHz, the N connection can be utilised at lower frequencies. There are several applications for the RF system (communication and broadcast equipment). the SMART connection.

The Function of Coaxial Wires

For the transmission of video and data, coaxial cables have been widely employed. The antenna has previously been used as a feeder line to connect to the Internet.

These transmission lines have a number of drawbacks when compared to other transmission lines.

They can be often used in situations with low attenuations since they work so well on high frequencies. Through specific designs, diffusion-free transmission can be accomplished.

For installation, the cable needs to be fixed to the electronic component. Nevertheless, there weren’t many.

What Is the Quality of Audio in Coaxial Cable?

Any audio system’s foundation is made up of audio wires. Knowing what kind of audio cable you are using is crucial because the cabling’s quality will greatly affect the audio experience.

An audio wire used in audio systems is termed coaxial speaker cable (or coax for short).

High-frequency signals can be carried using coaxial wires with little distortion. In terms of audio quality, a coaxial connection is superior to an optical one since it enables greater detail and a good dynamic range.

It can currently accommodate 24-bit/192kHz audio because it has more available bandwidth.

There are several gauges of cables as well. Only the thickest gauge, such 18-gauge, is used by certain audio systems, whereas other systems employ different gauges for diverse applications.

You can utilise coaxial cables with your gadgets if you want high-quality audio.

We normally advise utilising HDMI if it is available on your device because it supports a broad variety of codecs. If your device doesn’t have this connector, you can use the coaxial connector instead.

You can hear audio through a coaxial cable in addition to 5.1 surround sound and normal stereo. Another alternative is to use coaxial to get high-quality audio.

Unless you require a connection that supports lossless formats, this is not the best choice.

HDMI vs Coaxial

You can use an HDMI cable to connect your computer to the television, and a coaxial cable to connect your computer to the TV. There are a few distinctions between the two, though.

Better still is the HDMI cable. The HDMI (high definition multimedia interface) has gained popularity since its release in 2002 and is now a commonly used connectivity standard. There are HDMI cables with a 19-pin connection that are plug-and-play.

They feature a straightforward structure with nine bottom pins and ten top pins. To establish a connection, they are inserted into the HDMI port much like a USB disc. They communicate digital data.

Coaxial cables are inferior to HDMI cables in terms of picture quality. This happens because HDMI cables are designed for data handling and device design.

A coaxial cable’s shield conductor encircles the centre conductor and is grounded at both ends.

RF noise and interference have no effect on the inner conductor signal. It is possible to reduce noise over long distances by utilising a coaxial wire.

A signal can be split into many frequency bands, and the signal quality is unaffected by long cables.

A HDMI cable’s wires and connections are capable of receiving high-definition digital video and audio in a particular format.

Due to the lack of these capabilities in the bus architecture of coaxial cables and HDMI cables, installation problems with noise, congestion, and security may occur.

Speaker Wire vs Coaxial Cable

Coax is now the industry standard for data transmission due to its durability and precision, and its popularity is a result of its distinctive shielded construction.

You can use coax at home even if fibre optics and other 21st-century inventions can never compete with it as a speaker wire resource.

Coaxial speaker cables and RCA audio cables differ primarily in that the former carries analogue signals while the later does not.

They thus offer more bandwidth to guarantee a more reliable connection. The external cable has a better level of toughness and durability than typical audio cables.

You can use some systems’ audio and video outputs in a home theatre setup.

Coaxial cables can be used for a variety of additional purposes besides only television.

You can use it as your speaker wire if you take the essential precautions despite its lack of flexibility and general thickness.


You may find here all the details you require regarding coaxial cables and their applications, along with a brief overview of the many kinds of coaxial cables.

Because it can handle high frequencies, which are what most people desire in their sound system, coaxial cable is the industry standard for many home theatre components.

Additionally, it has a lower signal impedance, requiring less power to operate.

By keeping the wire in its little tube and shielding it from interference, it lessens distortion. Coaxial cable still has a lot of uses outside of home theatres in everyday life.