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Audiophile Glossary: Cables

Published on August 23, 2023 By
Noah Abbott

Welcome to our Audiophile Glossary on Cables! Where we define everything from RCA, XLR, speaker, optical, to HDMI cables as well as technical terms such as conductors, insulation, and shielding. Let’s dive into the captivating world of audio cables!

A

Analog Cables:

Can be classified into two types: balanced and unbalanced. Balanced is one in which the signal is transmitted across two wires with equal impedance, and the signal on each wire is opposite in polarity. This configuration results in better noise rejection and is commonly used in professional audio settings. On the other hand, unbalanced is transmitted through a single wire, with the signal and ground sharing the same conductor. This type of signal is more susceptible to noise and interference but is commonly used in consumer audio devices due to its lower cost. It's important to consider the type of analog signal when selecting the appropriate equipment for your audio setup.

Audio Engineering Society/European Broadcast Union (AES/EBU) Cables:

 A digital audio cable is important in transmitting digital audio signals between professional audio equipment. The cable is specifically designed to carry balanced signals, ensuring the sound's consistency and accuracy. With a characteristic impedance of 110 ohms, the cable can maintain a stable electrical flow, preventing any loss of quality during transmission. The XLR connectors, which are commonly used in professional audio applications, are used to connect the cable to the equipment. In addition to providing a reliable and efficient way to transmit digital audio signals, the AES/EBU digital audio cable ensures that the sound quality is maintained at the highest level possible, making it an indispensable tool for professionals in the audio industry.

B

Banana Plugs:

A type of single-wire electrical connector that is used to connect wires to various types of equipment. These plugs consist of a cylindrical metal pin that is surrounded by a plastic or rubber casing. The metal pin is typically designed to fit snugly into a jack or socket to provide a secure and reliable connection. While banana plugs are commonly used in audio and video equipment, they can also be used in various other applications, such as laboratory experiments or home wiring projects.

One of the key benefits of banana plugs is their ease of use. Unlike other types of electrical connectors, such as bare wires or spade connectors, banana plugs can be inserted and removed quickly and easily.

In addition to their ease of use, banana plugs are also known for their reliability. Because a plastic or rubber casing surrounds the metal pin, it is protected against moisture, dust, and other environmental damage. This helps to ensure a consistent and stable connection over time, even in harsh or demanding conditions. Whether you're a professional audio engineer, a hobbyist DIYer, or a scientist conducting experiments in the lab, banana plugs can provide a simple and effective solution for your wiring needs.

Bayonet Neill-Concelman Connector (BNC):

A BNC connector is a type of electronic connector that is commonly used in coaxial ethernet cables. The connector is designed to match a 50- or 75-ohm cable impedance. A BNC connector is unique in that it is connected by plugging in and then turning to lock into place. This feature makes it a reliable and secure connector type commonly used in various electronic devices and applications such as a digital audio interface. With its stable and high-quality signal transmission ability, the BNC connector has become popular among professionals and enthusiasts. Whether you are working on a home project or in a professional setting, the BNC connector is a versatile and reliable option for all your electronic needs.

Bi-wiring:

A method of connecting speakers to an amplifier using two sets of speaker cables instead of one. This allows for separating the low-frequency and high-frequency signals sent to separate sets of binding posts on the speaker and the amplifier. The theory behind bi-wiring is that it reduces the interaction between the two frequencies and can result in a clearer and more detailed sound. However, the benefits of bi-wiring are often debated among audiophiles, and some argue that it does not make a significant difference in sound quality.

C

Coaxial Cables:

Commonly used in both audio and video applications due to their capability to transmit high bandwidth signals with minimal interference. This makes them ideal for transmitting high-quality signals over long distances. The cable comprises several layers that work together to ensure the transmission of clear and noise-free signals. The center conductor is responsible for transmitting the actual signal, while the insulating layer helps prevent interference from other electrical signals. The braided shielding layer is designed to prevent any interference from external sources, such as radio waves or electrical equipment, and the outer jacket provides protection for the internal layers of the cable from damage or wear and tear.

D

Digital Cables:

Digital cables are an essential component when it comes to transmitting digital signals between audio devices. Several types of digital cables are used for different purposes, including coaxial, optical, and USB cables. Unlike analog cables, which transmit continuous electrical signals, digital cables transmit binary data, which allows for more accurate and noise-free transmission of digital audio signals. This means that digital cables are crucial in ensuring high-quality sound, which is especially important for professional audio production or home theater systems. By using digital cables, you can be sure that the audio signals you hear are as close to the original recording as possible, without any distortion or interference. Additionally, digital cables are relatively easy to use and connect, making them a convenient and practical choice for anyone who wants to enjoy high-quality audio without any hassle.

Digital Visual Interface (DVI) Cables:

Used to transmit digital video signals from a source to a display. They consist of a number of pins arranged in a specific pattern, with single-link cables having fewer pins than dual-link cables. DVI cables typically have a rectangular connector with pins arranged in a specific pattern.

DVI cables are important in a home theater system because they are used to transmit digital video signals from a source, such as a DVD player or computer, to a display, such as a television or a projector. This allows for high-quality video playback without any loss of quality or distortion. In addition, DVI cables can support high resolutions and refresh rates, making them ideal for use with modern high-definition televisions and other video devices. Using DVI cables, home theater and audio enthusiasts can ensure they get the best possible picture quality from their devices.

E

Ethernet Cables:

A popular communication technology that establishes a network between different devices. It works by transmitting data through twisted copper wires, which use electrical signals to represent the data that is being transmitted. These signals are then received by the recipient device, allowing for seamless communication between the two devices.
One of the key benefits of Ethernet cables is their ability to transmit data at high speeds. This is because Ethernet cables use a different connector type than other cable types, such as coaxial cables. Additionally, Ethernet cables have a higher maximum transmission speed, making them ideal for use in high-speed networks.

In addition to their high-speed capabilities, Ethernet cables are also known for their reliability and durability. They are designed to withstand a range of environmental factors, including temperature changes and physical wear and tear. This makes them an ideal choice for use in both home and office settings.

Ethernet cables are commonly used in Hi-Fi audio systems to connect various devices to a network. This allows for seamless communication between devices, such as speakers, amplifiers, and media players, and enables the streaming and playback of high-quality audio files. One popular use of Ethernet cables in Hi-Fi audio systems is for network-attached storage (NAS). NAS devices allow for centralized storage of large audio files, which can be easily accessed by multiple devices on the network. This is particularly useful for audiophiles who prefer to store their music in lossless formats, which can take up a significant amount of storage space. They are also used for streaming audio content from various online services, such as TIDAL, Spotify, and Qobuz. By connecting audio equipment to a network using an Ethernet cable, users can access a wider range of audio content and enjoy high-quality, uncompressed audio over Wi-Fi or Ethernet.

In addition to streaming audio content, Ethernet cables can also be used to control audio equipment using various mobile apps or voice assistants. This allows for easy control of audio playback and volume and the creation of custom playlists and audio settings.

External Line Return (XLR) Cables:

An audio cable consisting of three pins carrying the audio signal, the ground, and a shield to protect against interference. These cables are preferred over other cable types because they are less susceptible to interference and can transmit audio signals over longer distances without degradation.

In addition, XLR cables are commonly used in professional audio settings, such as in recording studios, live sound reinforcement and broadcasting. Due to their durability and reliability, they are widely used in the music industry, helping musicians and audio engineers achieve high-quality sound.

F

Fiber Optic Cables:

Fiber optic cables consist of thin strands of glass or plastic that transmit digital information via light signals. These signals are carried over long distances without degradation or interference, making fiber optic cables ideal for high-speed, long-distance data transmission. Unlike traditional copper cables, fiber optic cables are not susceptible to electromagnetic interference, making them more reliable and secure for transmitting sensitive data.

G

Grounding Wire:

A grounding wire is used to reduce electrical noise and interference that can affect the quality of sound produced by audio equipment. It is typically connected to the chassis of the equipment and then connected to the earth or ground. By doing this, any unwanted electrical signals that are picked up by the device can be safely diverted to the ground, preventing them from interfering with the audio signal. Grounding wires are an important part of any audio system and can help to ensure that the audio signal produced by the equipment is clean, clear, and free from unwanted noise.

Guitar Cables:

Typically made up of a wire core wrapped in insulating material and a protective outer layer. They work by transmitting the electrical signal from the guitar to the amplifier or other audio equipment. Compared to other cable types, guitar cables are often shielded to reduce interference and may have one 1/4-inch TS connector on one end and a 1/4-inch TRS or another 1/4-inch TS connector on the other end to connect to the guitar and amplifier, respectively.

H

Headphone Cables:

Cables specifically designed for connecting headphones to an audio source. They come in different lengths and styles, with different connector types on each end. Headphone cables can differ from other types of cables in terms of their construction, shielding, and impedance. For example, some headphone cables are made with high-quality materials like silver or oxygen-free copper to reduce signal loss and interference. Additionally, some headphone cables may have certain features like in-line controls or a microphone for phone calls. The impedance of headphone cables may also be different than other types of cables, as they are designed to work specifically with headphones. Generally, headphones have a higher impedance than other types of audio devices like speakers, so their cables may be designed to accommodate this difference.

High-Definition Multimedia Interface (HDMI) Cables:

A digital cable that has revolutionized how we connect our audio and video equipment. They are used for transmitting high-quality audio and visual data between devices. Unlike analog cables, which transmit continuous electrical signals, HDMI cables transmit binary data, resulting in more accurate and noise-free transmission of digital audio signals.

One of the main reasons why HDMI cables are so popular is their versatility. They can handle high resolutions and refresh rates, making them ideal for use with modern high-definition televisions and other video devices. They are also compatible with a wide range of audio and video formats, ensuring you can connect your equipment without worrying about compatibility issues. Another advantage of HDMI cables is their ease of use. They eliminate the need for separate audio and video cables, making them a more efficient and streamlined option for Hi-Fi audio systems. This can help reduce cable clutter and simplify your setup, making managing and maintaining your audio equipment easier.

They are also perfect for home theater systems because they can handle high resolutions and refresh rates, and transmit uncompressed audio signals, resulting in more accurate and noise-free transmission of digital audio signals. Their latency is also typically lower than that of other audio cables, making them an excellent Hi-Fi cable option.

HDMI cables are widely available, making them a convenient choice for anyone connecting their audio and video equipment. They come in various lengths, and many different types of HDMI cables are available, including standard HDMI cables, high-speed HDMI cables, and Ethernet-enabled HDMI cables. Finally, HDMI cables can transmit uncompressed audio signals, ensuring that you get the full range of sound without any distortion or loss of quality. This is particularly important for Hi-Fi audio systems, where sound quality is paramount.

HDMI cables are an excellent choice for anyone connecting their audio and video equipment. They are versatile, easy to use, widely available, and easily transmit high-quality audio signals. Whether you're a casual listener or a serious audiophile, HDMI cables are a must-have for any modern Hi-Fi audio system.

I

Insulation:

In audio cables refers to the material surrounding the conductive wires and preventing them from contacting other wires or electrical components, which could cause interference or short-circuiting. Insulation is designed to be a non-conductive material, such as rubber, that provides a barrier between the conductive wires and other materials. This differs from shielding, which is often used in addition to insulation.

Interconnect Cables / IC:

A type of audio cable that connects audio components to one another, such as preamplifiers to amplifiers or CD players to receivers. They are essential components in any audio system as they connect audio components to one another. They are designed to carry low-level signals, unlike speaker cables which are designed to carry high-power signals. ICs are typically composed of two types of connectors, RCA and XLR, and are made of conductive materials such as copper or silver.

RCA connectors are the most common type of connector used for ICs due to their ease of use and affordability. They are commonly used to connect sources such as CD players to preamplifiers or to connect preamplifiers to power amplifiers.

XLR connectors, on the other hand, are typically used for professional audio equipment due to their superior audio quality and noise reduction capabilities. They are commonly used to connect microphones to preamplifiers or to connect preamplifiers to power amplifiers.

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L

Lightning Cables:

A type of cable used to charge and sync Apple devices. It consists of a USB connector on one end and a lightning connector on the other. Unlike other cable types, lightning cables are proprietary and can only be used with Apple devices. They also have a chip inside that helps with authentication and security.

M

Mini-Jack:

Also known as 3.5mm cables, mini-jacks are a type of audio cable commonly used in portable audio devices such as smartphones, laptops, and MP3 players. These cables are designed with a small connector allowing easy and convenient use of portable devices. While Mini-Jack cables are not typically used in high-fidelity audio systems, they are versatile enough to connect portable devices to a headphone amplifier or other audio equipment.

In addition to their portability, Mini-Jack cables are also known for their durability. They are often made with high-quality materials that can withstand repeated use and accidental drops. This is especially important for people who are always on the go and need a reliable cable that won't break or wear down easily.

Another advantage of Mini-Jack cables is that they are widely available at affordable prices. You can easily find them in electronics stores, online retailers, and even at convenience stores. This makes them an accessible option for people who are looking for an affordable and reliable audio cable.

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P

Power Cables:

Supply electrical power to audio equipment. They consist of conductive wires wrapped in insulating material and are designed to handle the high voltages and currents required to power audio equipment. Unlike other cable types, such as analog or digital cables, power cables do not transmit audio signals but rather provide the necessary power to operate the equipment. Here are some things to look for in your essential power cables:

  1.   High-quality materials:   The best power cables should be made of durable materials that can withstand the test of time. Copper is a common material used in power cables due to its excellent conductivity and ability to transmit electrical signals effectively.
  2.   Effective shielding:   It's important that a power cable is properly shielded to prevent any interference or noise from entering the signal. Shielding can be done using various materials, such as foil or braided copper, and can help ensure that the power cable provides a clear and stable signal.
  3.   Proper gauge and length:   A power cable's gauge and length can significantly impact its performance. A cable that is too thin may not be able to transmit enough power, while a cable that is too long may result in signal degradation. Choosing a power cable with an appropriate gauge and length for your specific needs is important to ensure optimal performance.

Pin Connector:

A pin connector is an audio connector that connects speaker wires to speakers or other audio equipment. It consists of a metal pin that inserts into a corresponding socket or binding post, creating a secure connection between the two components. Pin connectors are often used in high-end audio equipment because they provide a reliable and low-loss connection that can help maintain the audio signal quality.

Pin connectors can come in various sizes and shapes depending on the audio equipment they use. They are typically made of high-quality materials such as copper or gold, which helps to prevent any interference or signal degradation that might occur with a lower-quality connector.
One of the key benefits of using pin connectors is their ease of use. Unlike other types of connectors, such as banana plugs or spade connectors, pin connectors can be easily inserted into the corresponding socket with minimal effort. This makes them a popular choice among audiophiles and audio enthusiasts who want to ensure that their audio equipment is properly connected and produces the best sound quality.

Another advantage of pin connectors is their versatility. They can be used with various audio equipment, including speakers, amplifiers, and receivers. This makes them a convenient choice for those with multiple audio components and wants to ensure they are all properly connected.

Q

R

Radio Corporation of America (RCA):

 A type of analog audio cable that is typically used to connect audio devices such as record players, CD players, or amplifiers to speakers or audio receivers. The red and white connectors easily identify them where the red is used for the right channel and white for the left channel. It is important to note that these cables are unbalanced, which means that they are more susceptible to noise interference than balanced cables. To avoid potential noise build-up, keeping these cables as short as possible is recommended. However, if a longer cable is necessary, it is important to ensure it is high-quality to minimize any potential noise interference.

S

Shielding:

Shielding refers to a thin layer of material, traditionally copper, placed around the wires within your cable that protects them from interference.

Spade Connector:

A spade connector is a type of speaker connector shaped like a fork with two prongs designed to fit around a speaker terminal or binding post. Speaker wires are typically attached to the prongs using screws or other fasteners, creating a secure and reliable connection between the speaker and the amplifier or receiver. Audiophiles and audio professionals often prefer spade connectors for their ability to provide a solid and consistent connection that minimizes the risk of signal loss or interference.

Speaker Cables:

Used to connect an amplifier or receiver to a speaker. They consist of one positive and one negative wire that transmits an audio signal from the amplifier to the speaker. Speaker cables differ from other cable types, such as HDMI or USB cables, in that they are designed specifically for carrying audio signals and have different types of connectors on the ends. They utilize common connector types such as banana plugs, spade connectors, and pin connectors on the speaker side.

Subwoofer Cables:

Used to connect a subwoofer to an audio system. They are typically made of copper or silver and have shielding to reduce interference. Unlike other cable types, subwoofer cables are designed to carry low-frequency signals, which are typically too weak to be transmitted over longer distances without signal degradation.

T

Tip Sleeve (TS) Cables:

Often attached to 1/4 connectors, TS cables are relatively simple analog cables. The connector, or jack, has two essential pieces that give this cable its name. The T stands for the tip, and the S stands for the sleeve. TS cables have two wires connected to those jack sections: signal and grounding wires. The signal wire handles the bulk of audio signal delivery, while the ground wire completes the conduction path and provides some shielding for the audio signal.

Tip Ring Sleeve (TRS) Cables:

Another analog cable that you most likely know very well is the TRS. This is often connected to the 3.5 mm jack. If that sounds a little familiar, it's because AUX cables are TRS cables. Like the TS cables, The T stands for the tip, and the S stands for the sleeve. The R refers to the ring. TRS cables contain three wires, one that carries a positive signal, one that takes a negative signal, and one grounding wire.

Tonearm Cables:

Specially designed interconnect cables that connect a turntable's tonearm to its phono preamp. They consist of two separate wires, one for the left and one for the right, and are shielded to prevent interference. Tonearm cables differ from other cable types in that they often have a lower capacitance, which allows for better high-frequency response and more accurate sound reproduction.

Toslink:

Toslink is essential to many High-Fidelity (Hi-Fi) audio systems, particularly those that use digital audio sources. It is a digital audio cable that uses fiber optics to transmit audio signals between devices, allowing for high-quality, uncompressed audio transmission without interference or signal degradation. This makes it an indispensable tool for audiophiles and audio professionals who want to ensure the highest-quality sound possible.

One of the main advantages of Toslink cables is their ability to transmit audio signals over long distances without any degradation in quality. This is because fiber optics transmit signals using light instead of electrical currents, which are more susceptible to interference and signal loss over long distances. As a result, Toslink cables can be used to connect audio components located far apart, such as a CD player and an amplifier, in separate rooms.

Toslink cables are also ideal for digital audio sources such as CD players, DVD players, Blu-ray players, and digital audio devices like soundbars and home theater systems. Using Toslink cables to connect these devices, users can enjoy high-quality, uncompressed audio free from any noise or distortion.

Another advantage of Toslink cables is their compatibility with various audio formats. They can transmit audio signals in formats such as PCM, Dolby Digital, and DTS, making them an excellent choice for users who want to enjoy high-quality audio from a variety of sources.

Turntable Cables:

Necessary for connecting a turntable to a Hi-Fi amplifier or receiver. These cables transmit the audio signal from the turntable's cartridge to the amplifier, where it can be amplified and played through the speakers. The turntable cables' quality can impact the Hi-Fi system's overall sound quality.

U

Universal Serial Bus (USB) Cables:

Consists of a connector on each end and a cable in between. They transmit data and power between devices, allowing them to communicate and charge. USB cables differ from other cable types in their versatility and standardization, making them a widely used and convenient option for various devices.

USB cables have become ubiquitous in modern technology due to their ability to transmit data and power between devices. They consist of a standardized connector on each end - Type-A, Type-B, Type-C, Mini, Micro, and Lightning are the most widely used kinds - that plug into a device's USB port and a cable in between that contains wires for transmitting data and power.

Unlike other cable types with proprietary connectors, USB cables are standardized and can be used with various devices such as computers, smartphones, cameras, and more. They can also transmit data and power simultaneously, making them a convenient option for charging devices while transferring data.

USB cables have evolved over time to provide faster data transfer rates and higher power capacities, with the latest USB 4 standard offering speeds of up to 40 Gbps and the ability to deliver up to 100 watts of power. Overall, USB cables have revolutionized the way devices connect and communicate with each other, providing a standardized and versatile solution for a wide range of applications.

V

Video Cables:

Used to transmit video signals from a source device, such as a DVD player or gaming console, to a display device, such as a TV or monitor. They can be digital or analog, and different types of video cables include HDMI, DisplayPort, VGA, and component video cables. Video cables differ from other cable types, such as audio cables, because they are designed to transmit video signals and prioritize high-quality image transmission over other factors like sound quality.

Video Graphics Array (VGA):

A video display standard that was introduced in 1987. While it is not directly related to high-fidelity audio, VGA has been used as a video output for many Hi-Fi audio components over the years, including CD players and DACs. Its importance lies in its ability to provide a high-quality video output that can be used to display album art, menus, and other information on a connected display.

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