What is a mixer? Karaoke mixer used for?

Currently, when buying Kararaoke staging, customers will usually be advised to buy karaoke mixer instead of amplifiers as before.This makes many customers wonder what the mixer is?What effect is the mixer?To answer this question, please refer to the information in the article below.

What is a mixer? What to do?

What is a mixer?This is a device that handles audio input very important in the audio system.A mixer is a place that receives information from devices such as a microphone, an instrument, or any device that produces a sound and processes it and produces a unique signal in mono or stereo.Depending on the different purposes, people produce different types of mixer such as karaoke mixer, recording mixer, performance mixer . so when choosing to buy products, customers need to understand their needs. what.

So what is a Karaoke mixer?Is it the same with the amplifier?What is the use of karaoke mixer?

The use of a karaoke mixer is quite similar to karaoke amplifiers because both functions handle and mix the audio signals from other devices in the karaoke system to reproduce the best and best sound, then transmit to the speakers to amplify. .However, when we go deeper, we will see that there are many differences between them.

Karaoke mixers often use Digital technology, mixing and calibrating the sounds together for the best, smoothest output sound.Karaoke mixer is suitable for use in high-end family karaoke rooms or professional karaoke rooms.For karaoke mixer to work best, it needs a power push, when combined with the push, the output power of the Karaoke mixer is always greater than 600W.In addition, the mixer can be combined with almost any type of speaker on the market today.

Meanwhile, Amply, although not needing a booster, uses analog technology, usually only serving small karaoke rooms at home so the capacity is usually only at 200W.However, the price of amplifier is usually much cheaper than karaoke mixer.

So, how to adjust the mixer to get the most stable and smooth sound quality?Please immediately refer to our guide below.

Instructions on how to adjust the best Karaoke Mixer

A mixer is a device that requires technical as well as user experience to create perfect sound quality.Different vocals need different ways of tuning, which is based quite heavily on the ears of the tuner.However, no matter how you adjust it, there are basic steps as the foundation, here are the most basic steps for you to start using the karaoke mixer in the best way.

Step 1: Preparation step

The order of plugging the microphones and the instruments . there is no rule, however, you should pay attention to the microphones in a group, and the instruments in a group.

1. The entire microphone plugs into the XLR jack.If the microphone is a dynamic type, do not turn on PHANTOM power.But if the microphone is a condenser type, you MUST turn on the PHANTOM power and plug in the XLR jack to work.
2. Musical instruments plugged into 6-mm jack.
3. Connect the Send Effect of the MICER to the INPUT of the Effect, and the OUTPUT of the Effect to the Return of the mixer.
4. Connect L / R master to Equalizer.
5. Connect Aux out 1-2 to the amplifier system-speaker test.
6. If your mixer has Subgroups, divide them into groups (eg, Ca is group 1,2; musical instruments is group 3,4; Drum drum is group 5,6…)
7. Adjust all Gain (trim) to the minimum position (max left), drag all fader volumes to a minimum
8. Set Equalizer of each line (Hi, Mid, Lo) to 0 (right position).
9. Turn Aux, Effect, Monitor… to the smallest position
10. Adjust the Pan of the center channel.If you plug in stereo into 2 channels, adjust channel 1 pan to the left, adjust channel 2 pan to the right.

Step 2: Adjust Gain and Volume

1. Increase Master LR to 0dB, and Subgroup to -3 dB.
2. You ask each artist, each instrument, to test each order AGAIN.Do NOT try the whole singer - orchestra together when you have not completed this stage.
3. During the test, follow these steps:

1. 1. Push Fader up - 6 dB
   2. Ask the singer / musician to try the medium and maximum
   3. The way to adjust the karaoke mixer is to increase Gain slowly until the Clip light starts to report red.At this point you can reduce a bit to medium, even when the loudest sound is not red.

If the Mixer has a PFL button: press the button down, ask the singer / musician to test the sound at the average and maximum level, then increase the gain until the two LR light bars notify 0dB (for maximum level) stop.

Note

In any situation, the red light of Clip will never be red.Gain is a quantitative input level, not a place to adjust.So after adjusting Gain, don't touch it anymore (unless the band changes their volume).If you want to adjust the volume, the Volume is where you need to adjust and always remember the Db rule.

PAD button: If the signal has been reduced after the signal is still red, press the PAD button down, immediately, the signal will be reduced by 20dB.

Step 3: Adjust the sound quality

The most important thing is to listen for something missing or missing.After you have identified the problem, you begin to correct.

0dB position: No effect, turn right must increase.Turning to the left is reduced.

1. LO: Usually fixed at 80Hz or 100Hz: Increase / decrease the bass, help sound warm, full force, but if too will make the sound dark, unclear, buzzing.
2. MID: Usually fixed at 800Hz, 1 kHz or 2 kHz: Increase / decrease the midrange to help the sound to be heard clearly and honestly, but if the increase is too high, it will make the sound dazzling, bulging, etc. fuzzy bar, unable to hear every detail.
3. Remember that most vocals and instruments have frequencies between 200Hz and 2kHz.
4. HI: Usually fixed at 8 kHz or 12 kHz: Increase / decrease the high volume.Letters with "s, x, gi, tr, ch", hihat and cymbal instruments are greatly affected by this button.The HI button helps you clearly distinguish Sanh - Blue - Painting - Gianh - Lemon sounds sweet, soft, the tail of the Verb, Echo sounds very good.If taken up too, will easily cause howling and treble breaks.

Step 4: Adjust Mid Frequency for mixer

For those who do not have experience adjusting karaoke mixer, Mixer with 3 tones is the most appropriate choice.Only when you really understand the nature of each frequency you choose EQ with more Frequency.

Frequency (Freq): Usually Mid Freq - this button allows you to change the frequency of the Mid part (in Chinese) from 200Hz to 5kHz.

This button will not work at all if you put the Mid button in the middle (0dB).

If you increase the Mid button to 6dB, you have increased the frequency defined by the Mid Freq button to 6dB and vice versa.

For example: You put the Mid Freq button at 250Hz, then you reduce the Mid button to 3dB, which means you have reduced the 3DB at 250Hz.

If you do not have much experience to adjust Mid Freq, try this method: bring Mid to + 9dB, then rotate the Mid Freq button from left to right slowly, listen to find the worst listening frequency (you must Do it again and again).Then just use the Mid button to trim that frequency.

Always try to reduce, not increase.

For example: You feel the sound is a bit dark, instead of raising the treble, try reducing the bass.If too bright, thin sound, instead of increasing the bass, reduce the treble try.This is a tip in how to adjust karaoke mixer that you should apply.

Step 5: Adjust the test speaker (Monitor)

After you are satisfied with the loudness and sound quality (EQ), now is the time to adjust the monitor speaker for the musician if you want to adjust the karaoke mixer.

Ask the musician to keep trying, increase the Aux button (which you use to connect to the amplifier + test speaker) until the musician is satisfied.Note, Aux to connect the Monitor should be Aux Pre, so the volume will not be affected up and down when you push the volume lever.You should never touch this Aux button again, unless the musicians ask for it.

Step 6: Adjust Effect

Everything is OK, if you are an instrument, you do not need to add effects (except for drums or acoustic instruments such as guitar, violin, trumpet .).

Now add the Effect:

1. Set Effect Send at master to 0dB, Effect Return at master to 0dB.
2. Bring channel effect up slowly until you're satisfied

Note

Effect input lights are only allowed to be green.Do not be red in any situation.

The effect is only allowed to be smaller than the real sound (however, even in case of close listening is too much).

After completing 1 channel, continue with the next channel.After trying each channel, ask the band to play a few songs.Adjust the vocals and instruments more harmoniously (use the fader to adjust the volume, do not adjust the gain buttons if not necessary).

In addition, you should also pay attention to the following:

1. The fader of each channel is always smaller than Subgroup and Subgroup is always smaller than Master.If you do the opposite, you will lose your headroom.
2. Always monitor the two LRs, do not let them exceed 0dB (so that when the band suddenly hits larger than normal, we still have a headroom reserve).
3. When the solo instrument or vocalist let's put that part up.If not, then decrease.
4. When the microphone is not in use, immediately press MUTE to avoid howling.

Hopefully with the information that we provide, you have understood what a Mixer is, what the mixer does and the effect of the karaoke mixer in adjusting the karaoke room sound.If you need to know more about mixer types on the market today, please contact the hotline immediately for the fastest assistance:024.35.68.69.69 (in Hanoi) and 028.38.33.66.66(in TP) HCM).