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(1) Monophonic sound reinforcement In the Disco hall, song and dance hall, or background music playback hall, mono sound reinforcement is often used, and stereo sound is not needed in these situations. At this time, the mixer should make the following connection:
(1) Use the auxiliary to send AUXSEND, through the power amplifier (connected to the bridge type), and connect speakers in series to perform sound reinforcement. At this time, the expanded sound usually has no effect.
(2) Use one of the output channels of the left and right channels or one of the group outputs to output the mixed mono output. After the amplifier (connected to a bridge type), the series speaker is used for sound reinforcement. At this time, the expanded sound usually has an effect sound.
(b) Stereo sound reinforcement Stereo playback is required in the OK hall, concert hall, and karaoke hall. In this case, the left and right channels are output at the same time or the grouped outputs 1 and 2 or the grouped outputs 3 and 4 are simultaneously delivered, and the amplifiers (connected to a stereo mode) and the corresponding speaker are used for sound reinforcement. At the same time, pay attention to the placement of the two speakers and try to expand the stereo field. In addition, attention should be paid to the spatial sound of each sound source, and Fader and PAN on the road should be fine-tuned to appropriately arrange their spatial position. For vocals and main instrumental tones, the corresponding PAN is adjusted to the middle position, and Fader pushes up to highlight the singing and main tones. If the input sound source is stereo, you must keep its original sound at the output of the mixer. You cannot place the PAN and Fader on the road arbitrarily. Otherwise, the sound is confused, and even the singing sound and the music sound cannot be kneaded together. The method of retaining the original sound is that the left channel input occupies the mixer all the way, the PAN on the road is turned to the left, the right channel input occupies the other channel of the mixer, and the PAN on the road is adjusted to the right. At the same time, adjust the two-way faders at the same height. The sound from this stereo source is retained on the left and right channel buses and the group bus.
(III) About Monitor Normal monitor refers to the stage monitor, which is used by the stage performers to listen to sounds, and is sent to the monitoring amplifier and stage monitor speakers through the auxiliary sender (AUXSEND) of the mixer . For the sound that needs to be monitored, turn on the corresponding auxiliary knob on the road. For sounds that do not need to be monitored, the auxiliary knob of the corresponding way is turned off, so that individual sounds of various musical sounds or vocals can be supervised. Headphone monitoring is different from stage monitoring. Headphone monitoring is used by a tuner to monitor the status of various sources after being input to the mixer, as well as various mixed output conditions. With this type of headphone monitoring, the source can be checked and corrected. Various adjustments of the soundstage.
(d) Connection of the effect machine to the mixing console Using the INS jacks on each road, the acoustic signal on the road is individually processed for effect processing. The acoustic signal from the INS jack is introduced into the effect machine. After processing by the effect machine, the sound signal is output from the effect machine and then inserted from the The hole is sent back to the mixer. This connection method is suitable for the effects of large orchestras on various types of music and vocals.
2. Use Aux Send (AUXSEND) to send the sound signal to the input of the effect machine and output from the effect machine to the auxiliary return (AUXRTN) of the mixer. For the sound signal to be processed, turn on the corresponding auxiliary knob on the road. For sound signals that do not need to be processed, turn off the corresponding auxiliary knob on the road. This connection can handle multiple sources of the same kind (for example: multiple people singing) by a single effect machine.
3. Using Aux Send (AUXSEND), the sound signal is sent to the input of the effect machine and output from the effect machine to the line input terminal of the mixer. At this time, this road is treated as an effect of reprocessing (amplification, equalization, sound image, mixing ratio, etc.), and the fader of the road is used for effect mixing ratio adjustment, which is more convenient. However, all auxiliary knobs on the road must be closed. Otherwise, there will be a sound reinforcement system whistle or an effect sound on the auxiliary bus.
(5) AuxBus Aux buses can be used as EffectBus, MonitorBus, Wired Voice Control buses (control lights, etc.), or they can be used for recording or sound reinforcement for certain sound sources. In any case, the more auxiliary buses, the more convenient it is for the tuner to use it, and it is even possible to use a single mixer to control simultaneous playback or play a variety of different music sounds on multiple occasions.
Analyze the operation of the mixer
When operating the mixer , pay attention to the following five aspects: