Teach you how to connect the audio cable correctly

Teach you how to connect the audio cable correctly

Teach you how to connect the audio cable correctly. The audio cable plays a very important role in the entire audio system. Now on the market There are a lot of sound systems and audio cables, but there are still many people who don’t know how to connect the audio cables themselves. Let me take a look with you. Teach you how to correctly connect audio cables 1

There are several types of audio cables

Audio cables are mainly divided into the following two categories: audio electrical signal cables , audio optical signal cable.

The audio signal cables include:

1. RCA (commonly known as Lotus head audio cable) unbalanced, analog digital

2. XLR (commonly known as XLR Audio cable) balanced/unbalanced, analog digital

3. AES/EBUTRS JACKS (commonly known as junior) balanced/unbalanced, analog

4. TS JACKS (commonly known as sophomore) Unbalanced, analog

5. BANABA PLUG (banana plug) rear-stage output speaker cable, analog

6. SPEAKON (speaker plug) rear-stage output speaker cable, analog

7. PHONIX (Phoenix plug) for engineering installation and use, balanced and unbalanced

8. RJ45 (crystal head) digital, physical formats are diverse, depending on the manufacturer

9. BNC (Q9) digital, transmits WORDCLOCK and MADI signals

Audio optical signal cable

Audio optical signal cable is divided into two categories: civilian and professional. kind. Most civilian optical signal cables are made of plastic optical fibers. The connector type is TOSLINK or 3 or 5MM circular connector. The signal format for civilian use is S /

PDIF.

Among the professional audio formats is the ADAT format. If it is used as an audio interface between professional audio and television stations, the format of communication optical cable is often used. Use common single-mode and multi-mode optical fibers and commercial communication specification connectors.

How to connect audio cables

Balanced connection

The so-called balanced connection is to use two signal lines to transmit a pair of balanced According to the signal connection method, since the interference received by the two signal lines is the same and has opposite phases, the interference will be canceled out. Since the frequency range of audio is low, it is susceptible to interference during long-distance transmission. Therefore, the balanced connection method, as an anti-interference connection method, is common in audio connections for professional equipment. Two-core shielded wires are also used as audio connection lines in the connection lines of household appliances. However, it transmits the left and right channels, which are two signals, and is not a balanced connection.

Unbalanced connection method

Unbalanced connection method is a connection method that uses only one signal line to transmit signals. Since this connection method is susceptible to interference, it is only commonly used on household appliances. Or used in some less demanding situations. The specific connection method takes the XLR connector as an example:

1. Balanced connection method: 1 pin is connected to the shield, 2 pins are connected to the terminal (also known as the hot end), and 3 pins are connected to the - terminal (also known as the cold end) ;

2. Unbalanced connection: Pin 1 and pin 3 are connected to the shield, and pin 2 is connected to the terminal (signal terminal). The choice of connection method generally depends on the specific requirements of the device for the interface. If you can use the balanced connection method, try to use the balanced connection method. When making connections, be sure to read the instructions on the panel and read the relevant instructions and requirements in the instruction manual first.

In some situations, you may encounter a situation where the device interface at one end is a balanced interface and the device at the other end is an unbalanced interface. If the requirements are not very strict, you only need to use the balanced connection method on the balanced end. , use the unbalanced connection method if it is unbalanced, just pay attention to the correspondence of each pin.

In the case of strict requirements, a conversion circuit must be used to convert balance into unbalanced, or unbalanced into balanced.

This is where I will introduce to you the types of audio cables and the correct connection methods for audio cables. In daily life, audio connection cables are often used, so for the connection methods introduced above, it is recommended that you collect them. Teach you how to connect the audio cable correctly 2

1. First, look at the back of the amplifier and speakers to see if the audio cables are complete;

2. The connection of the audio cable is easy, find an You can also use pliers or scissors to peel off the audio wire ends;

3. Remove the skin and twist the copper wire a few times with your hands to make the copper wire harder;

4. The other end of the audio cable is also connected to the back of the speaker. Some speakers are of the binding post type;

5. If there are two speakers, connect the cables to the Left On both sides of Right, there is a line on the left and right.

6. After the power amplifier and speakers are connected, you need to input the sound source into the power amplifier. Generally, a DVD player can be used as the sound source. If allowed, you can also use a laptop, etc., which is more flexible.

7. You can find a small flat-blade screwdriver, plug in the microphone, and slowly adjust the knob while talking until the speaker suits your voice.