4

Making the Most Of Your Mixer

External Effects, Monitor Mixes, and Groups

4-1. AUX Buses For Monitor Sends and Overall Effects

There are a number of reasons why you might want to “tap” the signal flowing through your mixer at some point before the main outputs: the two most common being 1) to create a monitor mix that is separate from the main mix, and 2) to process the signal via an external effect unit and then bring it back into the mix. Both of these func- tions, and more, can be handled by the mixer’s AUX (Auxiliary) buses and level controls. If the mixer has two AUX buses, then it can handle both functions at the same time. Larger mixing con- soles can have 6, 8, or even more auxiliary buses to handle a variety of monitoring and processing needs.

Using the AUX buses and level controls is pretty straightforward. The only thing you need to con- sider is whether you need a “pre-fader” or “post- fader” send. AUX sends often feature a switch that allows you to configure them for pre- or post- fader operation.

Pre/Post—What’s the difference?

pre

post

 

 

A “pre-fader” signal is taken

A “post-fader” signal is

from a point before the

taken from a point after the

channel fader, so the send

channel fader, so its level

level is affected only by the

will be affected by both the

AUX send level control and

AUX send level control and

not by the channel fader.

the channel fader.

Pre-fader sends are most

Post-fader sends are most

commonly used to provide

commonly used in conjunc-

monitor mixes.

tion with the mixer’s AUX or

 

effect returns for external

 

effect processing.

 

 

Pre-fader send for a monitor mix. The send signal is fed to the monitor power amplifier and speaker system. The channel fader does not affect the send level so the monitor mix remains independent of the main mix. No return signal is used in this case.

Channel

Master

Fader

Fader

AUX Send

Level

AUX Send Level

AUX Return Level

Post-fader send for external effects processing. The send signal is fed to the external effect unit—a reverb unit, for example—and the output from the effect unit is returned to the AUX Return jack and mixed back into the main program. The send level is affected by the channel fader so the effect level always remains in proportion to the channel signal.

MG16/4, MG12/4

13

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Yamaha 12/4 owner manual AUX Buses For Monitor Sends and Overall Effects, Pre/Post-What’s the difference?
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12/4 specifications

The Yamaha 12/4 mixer is a compact yet powerful audio mixing console that has gained popularity among musicians, audio engineers, and sound technicians. Renowned for its versatility and robust build, this mixer is ideal for both live sound and studio applications.

One of the standout features of the Yamaha 12/4 is its 12-channel configuration, which includes four microphone inputs with high-quality preamps. These preamps are designed to capture audio with remarkable clarity and low noise levels, making them perfect for a variety of sound sources, from vocals to instruments. The four XLR inputs are complemented by additional line-level inputs, offering flexibility to connect multiple devices.

Each channel on the Yamaha 12/4 mixer is outfitted with a three-band equalizer, allowing users to shape their sound effectively. The EQ provides control over low, mid, and high frequencies, enabling precise adjustments to tailor the mix to specific requirements. This level of control is particularly beneficial for live performances, where quick tweaks can significantly enhance the audio experience.

The mixer also includes an onboard effects processor with a range of digital effects, such as reverb and delay, adding depth and dimension to the sound. This feature is a valuable asset for performers looking to enrich their live sound without the need for external effects units.

In terms of connectivity, the Yamaha 12/4 offers various outputs, including main outputs and auxiliary sends. These outputs allow for simple routing of audio signals to speakers, monitors, or recording devices. The auxiliary sends can be utilized for stage monitoring or for sending signals to external processors, enhancing the mix's overall versatility.

The design of the Yamaha 12/4 is both user-friendly and compact, making it an ideal choice for smaller venues and mobile setups. Its lightweight chassis and robust construction ensure durability during transport and frequent use, while clearly labeled controls facilitate ease of use for both novice and experienced operators.

In conclusion, the Yamaha 12/4 mixer combines quality, functionality, and versatility in a compact form, making it an excellent choice for audio professionals looking for a reliable mixing solution. With its high-quality preamps, flexible EQ, digital effects, and robust build, the Yamaha 12/4 stands out as a valuable tool for anyone in the sound industry, whether in the studio or on stage.
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