Up posture: Do you really understand the speaker?

The home theater network () speaker is the terminal equipment in the AV home theater, HIFI audio system audio playback system, which is roughly composed of a speaker unit, a box and a frequency divider. The working principle is that the sound of the full-band sound is divided in

Classification of lighting design

The lighting design is divided into quantitative design and quality design. The quantitative design is the basis, which is to determine the lighting level and lighting standard (illuminance, glare limit level, color temperature and color rendering) according to the function

Analyze the status of China's LED chips

The chip is the core component of the LED. At present, there are many LED chip manufacturers at home and abroad, but there is no uniform standard for chip classification. According to power classification, there are high power and medium and low power; if classified by color, it is mainly

What is direct, reflective, not direct sound field

When the speaker makes a sound in a room, the listener can hear the sound coming directly from the speaker. This is the direct sound field (indirectfield), but you can also hear the sound reflected from the wall, ceiling and floor. This is called Reflective field (reverberant fi