3.5mm (AUX) Audio Cable: The most common audio cable in daily life, also known as a stereo audio cable. Its moderate interface size makes it suitable for connecting most everyday audio devices, such as smartphones, headphones, speakers, laptops, etc. Whether in the car or at home, you can plug in a 3.5mm audio cable anytime, anywhere, and immerse yourself in a pure musical world.

6.5mm Audio Cable: Primarily used in stage audio, press conferences, KTVs, recording studios, home theaters, and video-audio systems. Suitable for speakers, amplifiers, and mixing consoles. If you are a music enthusiast or a professional musician, a 6.5mm audio cable will be a powerful assistant on your musical journey, making your music more professional and enjoyable.

XLR Audio Cable: Also known as a cannon cable, it transmits balanced audio signals and is commonly used for handheld microphones and surround sound systems used on stage. The microphone cable we usually refer to is an audio cable with a cannon interface. XLR connectors are the most widely used type in professional sound systems. They can effectively reduce interference, are not easy to pull out, and the connector specifies the signal flow direction to prevent connection errors. They are commonly used in recording studios and live performances.

RCA Cable: Due to its head resembling a lotus flower, it is also called a lotus cable. It is often used to connect devices such as karaoke machines, speakers, DVDs, TVs, and mixing consoles. Its interface distinguishes between left and right channels, with red representing the right channel and white representing the left channel. There are L and R标识ations next to it. Usually, there is also an AUDIO INPUT identification next to the RCA interface, which represents audio input, while the identification AUDIO OUTPUT represents audio output. If there are three RCA interfaces with red, white, and yellow on the device, it means that the device also supports video input and output. Simple and easy to understand, it is the perfect choice for creating a home theater.

Optical Audio Cable: Uses fiber optics to transmit digital signals, usually identified by "Optical" or "Toslink." The transmission speed is extremely fast, and the sound quality is high-fidelity. It is suitable for connecting digital audio devices, sound systems, etc. Its physical interface is divided into two types: one is a standard square head, and the other is a round head similar in appearance to a 3.5mm TRS connector, which is commonly seen on portable devices. If you are追求ing high-quality music enjoyment, an optical audio cable can meet your requirements.

Coaxial Interface: There are two types of coaxial interfaces: the RCA coaxial interface and the BNC coaxial interface. The former looks no different from an analog RCA interface, while the latter is somewhat similar to the signal interface we commonly see on TVs and has a locking design. The interface is identified as "Coaxial." Coaxial interfaces also transmit digital signals.

Banana Plug: The plug for the speaker wire is called a banana plug. Its wiring methods are divided into screw-on type and plug-in type. There is a SPEAKERS identification near the interface. It is often used on stereo systems, amplifiers, and other devices and is one of the commonly used cables for building home theaters. As shown in the figure, banana plugs can be connected to professional audio cables and high-fidelity sound quality can also be enjoyed.

Common Audio Interfaces

TRS (Balanced TRS): Tip, Ring, Sleeve. A balanced TRS interface has three separate contacts and usually uses a 6.35mm plug. Its advantages are wear resistance and suitability for repeated plugging and unplugging. Due to its relatively high production cost, it is generally used in high-end professional audio equipment.

1/8TRS (Unbalanced TRS, 3.5mm Interface): The most common sound card interface we see today. The vast majority of consumer sound cards (including onboard sound cards) use this type of interface, such as connecting to a car AUX interface or an audio device headphone interface.

TS (Unbalanced TS): Two separate contacts, transmitting a monaural signal, most commonly used for instrument cables such as guitars, basses, and keyboards.

XLR (Cannon Head): Consists of a three-pin plug (male port) and a locking device (female port). Because a locking device is used, XLR connections are quite secure and are generally used to connect microphones to sound cards or to connect speakers.

RCA (Lotus Head): Each RCA cable is responsible for transmitting an audio signal from one channel, so transmitting a stereo signal requires a pair of cables. For multi-channel systems, use the same number of cables as the actual number of channels. In daily life, we will see RCA on desktop speakers, and it should be familiar to DJs.
Note: For stereo RCA audio interfaces, the right channel is usually marked in red, and the left channel is marked in blue or white.

AES/EBU Interface: A digital audio interface type jointly designed by the Audio Engineering Society of the United States and the European Broadcasting Union. It often appears on professional AD/DA decoders or some high-end monitor speakers. It can use a balanced transmission method (generally using a digital XLR connector) or an unbalanced transmission method (generally using a BNC connector). AES/EBU interface input/output interfaces can transmit two-channel PCM (digital audio signal), and the channels are automatically timed and self-synchronized.
Note: Although ordinary XLR (cannon port) has almost the same appearance as the AES/EBU interface, it is not recommended to transmit digital signals. An AES/EBU digital cannon cable with an impedance of 100 ohms is required to connect the front and rear-level devices.

S/PDIF (Sony and Philips Digital Interface): A consumer digital audio interface protocol jointly developed by Sony and Philips. Each separate interface can transmit a two-channel PCM digital audio signal, so it will not be subject to interference like an analog signal, which would reduce audio quality.
Note: Coaxial digital interfaces and optical fiber interfaces both belong to the category of S/PDIF interfaces.

Digital Coaxial Interface: Belongs to the S/PDIF protocol digital audio interface, generally divided into RCA coaxial interface and BNC coaxial interface, commonly found in digital mixers, karaoke machines, TVs, and broadcasting equipment.

(S/PDIF-RCA Coaxial Interface and Plug)

(BNC Coaxial Interface and Plug)

Optical Interface (TOSLINK/Toshiba Link): Uses optical pulses to transmit digital signals, commonly identified by OPTICAL, also using the S/PDIF protocol. Its characteristics are high bandwidth and low signal attenuation. It is used in regular sound cards, home set-top boxes, or digital TVs, connecting DVD players and AV amplifiers, and supports PCM digital audio signals, Dolby, and DTS audio signals. In addition, the optical interface can also use the ADAT protocol.
Note: Do not bend during use, otherwise, it will cut off the same path transmission of the optical signal.

MIDI Interface: Usually used to connect recording equipment and computers, transmitting information such as signals,力度, and sustain pedals to the computer. It is used in scenarios such as arranging, recording, and writing scores.