Projector, power amplifier and speaker are all indispensable parts of audio-visual equipment, and the connection mode between them is an important factor affecting audio-visual effect. The following will specifically introduce the connection method between the projector power amplifier and the speaker:

I. Connection between projector and power amplifier

Generally speaking, the projector itself has no audio function and needs an external power amplifier to enhance the sound effect. Generally speaking, the projector and power amplifier are connected as follows:

1, HDMI connection audio cable

The transmission of audio and video signals can be realized by connecting the HDMI cable of the projector to the output port of the power amplifier and then connecting the audio cable of the power amplifier to the audio input port of the projector.

2.AV connection

The transmission of audio and video signals can be realized by connecting the audio and video output line of the projector with the audio and video input line of the power amplifier with the AV line.

3. Optical fiber connection

The optical fiber connection cable is used to connect the optical fiber output line of the projector with the optical fiber input line of the power amplifier, and then transmit the audio signal to the speaker through the output line of the power amplifier.

Second, the power amplifier and speaker connection

After connecting the projector and the power amplifier, you need to connect the power amplifier and the speaker to achieve good sound effects. It usually includes the following methods:

1.RCA connection

Using RCA wire to connect the left and right channels of power amplifier and speaker can realize audio signal transmission.

2. 3. 5 mm pure audio line

3.5mm pure audio cable is used to connect the audio input port of the power amplifier and the speaker to realize the transmission of audio signals. The above two methods are the most basic and are generally used to connect speakers and power amplifiers.

3. Network wiring

Some professional speakers also support network connection, connect with Wi-Fi or Bluetooth, and realize audio signal transmission through wireless network.

The above is a detailed introduction of the connection method of projector power amplifier and speaker, hoping to help you better master the connection skills of audio-visual equipment in order to obtain better audio-visual effects.