1. Classification and main functions of home audio

According to professional audio manufacturers, home audio is usually divided into pure audio and home theater audio. Pure Audio, also known as Hi-Fi Audio, consists of a pure power amplifier (only two-channel output), speakers, and a COMPACT disc player. It is usually used for listening to music and songs. Home theater speakers, also known as AV combo speakers, can play two-channel music and songs, as well as multi-channel CDS.

2. The relationship between optical fiber cable, coaxial cable, decoder and power amplifier

All disk drives can read and decode codes, but to keep costs down, the decoding capabilities are usually fairly basic. In order to improve the "decoding" level and make the sound more beautiful, we need to be equipped with an independent decoder and a power amplifier with decoding function. Optical cables and coaxial cables need to be connected between the optical drive and the decoder. The optical drive and decoding power amplifier are responsible for transmitting the digital audio signal read by the optical drive player to a separate decoder or power amplifier with decoding function to decode it into an audio signal. This transmission mode is usually used at high frequencies. ktv audio manufacturers

3. Audio cable, video cable and coaxial cable cannot be used together

Visually, video cables, audio cables, and coaxial cables consist of a wire body and two terminals, and they all rely on an internal metal core to transmit signals. So some people try to combine the three conveniently. This also turns on the signal, but at the expense of sound and picture quality.

4. Compare the requirements of two AV cables with the same function

①The price and grade of the two should be close;

Need to use the same sound, the same music, the same volume, the same listening environment;

The stereo used and the test CD needed to be medium to high, if the levels were too low it would be noisy and difficult to compare.

Interpretation and maintenance of audio line necessity

According to the conference audio manufacturer, the AV cable undertakes the task of audio signal transmission and plays a pivotal role in the entire audio system. Good sound ray and differential sound ray not only use different materials, but also have different internal structure principles, so there are certain differences in signal transmission performance and resistance to external electromagnetic interference.

The investment principle to ensure a more reasonable sound effect is: the treble line is selected for the treble, the sound line for the midrange is selected, and the bass line for the bass is selected. Some people buy high stereo, but they choose bass line to save money. Taking your Mercedes to a gas station and filling it up to 90% makes no difference, it's cheaper. On the surface, they save money, but they don't actually work well. They couldn't make the most of Mercedes.

Usually in the audio configuration, the audio cable investment ratio is 15%~30%, which is more reasonable. Even for general audio, you can't choose an AV cable with a low grade, because this will not only attenuate the signal, but also the transmitted signal is susceptible to external electromagnetic interference, which will eventually lead to sound distortion.

The AV cable has the following aspects in use. If you can pay attention, it can not only improve the audio performance, but also prolong the service life of the cable: