A complete set of audio equipment includes microphones, mixers, feedback suppressors, effects, equalizers, compressors, exciters, crossovers, disc players, mixers, power amplifiers, main amplifier speakers, supplementary speakers, Return speakers, monitor speakers, bass speakers.
How to connect the stereo to the computer
Active speakers and passive speakers:
Computer speakers are mainly divided into two types of speakers, active speakers and passive speakers. The way to distinguish these two speakers is simple. The active speaker has a built-in low-power amplifier, which is directly plugged into the microphone port of the computer through the speaker cable, and then it can work normally when the power is turned on. Passive speakers are usually some large speakers or some old-fashioned speakers, which do not have a power amplifier, so you must first connect the speaker cable to the power amplifier, then connect the computer through the power amplifier line, and finally connect the power supply to the other end of the power amplifier. This will work properly.
The way to connect the active speaker to the computer is very simple. You usually plug in the headphone output port of the computer through a 3.5m one-to-two audio cable, and plug the red and white port of the speaker on the other side. Connect the power supply to work. Now go Some computer-specific speakers that you buy can directly have a built-in power amplifier, plug and play.
And our focus is to introduce the method of connecting the passive speaker to the computer. Some lines may not match the interface and need to be connected by welding. Buy a 3.5 to 6.5 stereo adapter cable in the electronics market, the jack is a 3.5mm plug, and weld the plug cable to the speaker cable. To put it simply, the 6.5 plug is connected to a channel of the power amplifier, such as AUX DVD, etc. The 3.5 plug is inserted into the signal output end of the sound card and it is OK. However, many people are not good at welding the lines, so they dare not to do the welding by themselves. First, test the polarity of the two wires of the speaker. If the polarity is reversed, there will be no sound. Use a AA battery and connect the two wires of the speaker to the positive and negative poles of the battery. If you can hear the "cracking" sound inside the speaker by flipping the wires, then the negative pole of the battery is connected to the ground wire, otherwise there should be no sound. If it is the left speaker, it is the left channel; if it is the right speaker, it is the right channel. However, if it is a digital connection, only one line is needed. One end is connected to the SDIF output of the sound card and the other end is connected to the SDIF input of the power amplifier. The sound quality is better.
After testing the polarity of the speaker, there are three poles in the stereo plug, namely the ground and the left and right channels. Solder the ground wires of the left and right speakers to the ground wire of the plug and the other wire to the left and right channels. There is also a plug shell that can be screwed on. After the soldering is complete, cover the plug shell and it is almost the same as the earphones bought outside.