Features
Input Channels..page 12 With up to 16 (MG166CX/MG166C: 10) mic/line inputs or up to four stereo inputs, the MG mixer can simultaneously connect to a wide range of devices: microphones, line-level devices, stereo synthesizers, and more. Compression...page 10 Compression increases the overall level without introducing distortion by compressing excessive peaks in the signals from microphones and guitars. AUX Sends and Stereo AUX Return..page 16 You can use the AUX SEND jack to feed the signal sent to an external signal processor, and then return the processed stereo signal through the RETURN jack. High-quality digital effects (MG166CX)..pages 15, 19 With digital effects built in, the MG166CX can deliver a wide range of sound variations all by itself.

Caractristiques

Compression...page 46 La compression augmente le niveau gnral sans engendrer de distorsion en comprimant les pics excessifs des signaux des micros et des guitares. Envois AUX et retour AUX stro..page 52 Vous pouvez utiliser la prise jack AUX SEND pour envoyer le signal vers une unit de traitement de signaux externes, puis pour renvoyer le signal stro trait via la prise jack RETURN. Effets numriques de qualit suprieure (MG166CX).pages 51, 55 Grce aux effets numriques intgrs, la console MG166CX peut proposer de nombreuses variations de sons.

Funktionen

Eingangskanle...Seite 30 Mit bis zu 16 Mikrofon-/Line-Eingngen (MG166CX/MG166C: 10) oder bis zu vier Stereoeingngen knnen viele Gerte gleichzeitig am MG-Mischpult angeschlossen werden: Mikrofone, Gerte mit Leitungspegel, Stereo-Synthesizer uvm. Kompression...Seite 28 Kompression erhht den Durchschnittspegel, ohne Verzerrung hinzuzufgen, indem bermige Pegelspitzen der Signale von Mikrofonen oder Gitarren komprimiert werden. AUX Sends und Stereo AUX Return..Seite 34 Von der AUX SEND-Buchse knnen Sie das Signal einzeln an einen externen Signalprozessor fhren, und das verarbeitete Stereosignal ber die RETURN-Buchse zurck in das Pult fhren. Hochwertige Digitaleffekte (MG166CX)..Seiten 33, 37 Mit den eingebauten digitalen Effekten kann das MG166CX aus sich heraus eine Reihe von Klangvariationen liefern.

Caractersticas

Canales de entrada..pgina 66 Con un mximo de 16 entradas de micrfono/lnea (MG166CX/MG166C: 10) o cuatro entradas estereofnicas, la mezcladora MG puede conectarse simultneamente con una gran variedad de dispositivos: micrfonos, dispositivos de nivel de lnea, sintetizadores estereofnicos, etc. Compresin...pgina 64 La compresin aumenta el nivel general sin causar distorsin, mediante la compresin del exceso de picos en las seales de los micrfonos y guitarras. Envos AUX y retorno AUX estereofnico..pgina 70 Puede utilizar la toma AUX SEND para introducir la seal enviada en un procesador de seales externo y luego devolver la seal estereofnica procesada a travs de la toma RETURN (retorno). Efectos digitales de alta calidad (MG166CX).pginas 69, 73 Gracias a sus efectos digitales incorporados, la mezcladora MG166CX puede producir por s misma una amplia gama de variaciones de sonido.

EN DE FR ES

Espaol

Franais

Canaux dentre...page 48 Avec 16 entres micro/ligne (MG166CX/MG166C: 10) ou quatre entres stro maximum, la console de mixage MG peut connecter simultanment une grande varit dappareils : micros, appareils de ligne, synthtiseurs stro, etc.

Deutsch

Owners Manual Bedienungsanleitung Mode demploi Manual de instrucciones

English

IMPORTANT NOTICE FOR THE UNITED KINGDOM Connecting the Plug and Cord
IMPORTANT. The wires in this mains lead are coloured in accordance with the following code: BLUE : NEUTRAL BROWN : LIVE As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured makings identifying the terminals in your plug proceed as follows: The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK. The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED. Making sure that neither core is connected to the earth terminal of the three pin plug.
* This applies only to products distributed by Yamaha-Kemble Music (U.K.) Ltd. (2 wires)

FCC INFORMATION (U.S.A.)

1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT!
This product, when installed as indicated in the instructions contained in this manual, meets FCC requirements. Modications not expressly approved by Yamaha may void your authority, granted by the FCC, to use the product. 2. IMPORTANT: When connecting this product to accessories and/or another product use only high quality shielded cables. Cable/s supplied with this product MUST be used. Follow all installation instructions. Failure to follow instructions could void your FCC authorization to use this product in the USA. 3. NOTE: This product has been tested and found to comply with the requirements listed in FCC Regulations, Part 15 for Class B digital devices. Compliance with these requirements provides a reasonable level of assurance that your use of this product in a residential environment will not result in harmful interference with other electronic devices. This equipment generates/uses radio frequencies and, if not installed and used according to the instructions found in the users manual, may cause interference harmful to the operation of other electronic devices. Compliance with FCC regulations does not guarantee that interference will not occur in all installations. If this product is found to be the source of interference, which can be determined by turning the unit OFF and ON, please try to eliminate the problem by using one of the following measures: Relocate either this product or the device that is being affected by the interference. Utilize power outlets that are on different branch (circuit breaker or fuse) circuits or install AC line lter/s. In the case of radio or TV interference, relocate/reorient the antenna. If the antenna lead-in is 300 ohm ribbon lead, change the lead-in to co-axial type cable. If these corrective measures do not produce satisfactory results, please contact the local retailer authorized to distribute this type of product. If you can not locate the appropriate retailer, please contact Yamaha Corporation of America, Electronic Service Division, 6600 Orangethorpe Ave, Buena Park, CA90620 The above statements apply ONLY to those products distributed by Yamaha Corporation of America or its subsidiaries.

* This applies only to the MG166CX distributed by YAMAHA CORPORATION OF AMERICA, not the MG206C/MG166C.

(class B)

MG206C/MG166CX/MG166C Owners Manual

PRECAUTIONS

PLEASE READ CAREFULLY BEFORE PROCEEDING
* Please keep this manual in a safe place for future reference.

WARNING

Always follow the basic precautions listed below to avoid the possibility of serious injury or even death from electrical shock, short-circuiting, damages, re or other hazards. These precautions include, but are not limited to, the following:

Power supply/Power cord

Only use the voltage specied as correct for the device. The required voltage is printed on the name plate of the device. Use only the included power adaptor (PA-30 or an equivalent recommended by Yamaha). Do not place the power cord near heat sources such as heaters or radiators, and do not excessively bend or otherwise damage the cord, place heavy objects on it, or place it in a position where anyone could walk on, trip over, or roll anything over it.

Water warning

Do not expose the device to rain, use it near water or in damp or wet conditions, or place containers on it containing liquids which might spill into any openings. Never insert or remove an electric plug with wet hands.
If you notice any abnormality
If the power cord or plug becomes frayed or damaged, or if there is a sudden loss of sound during use of the device, or if any unusual smells or smoke should appear to be caused by it, immediately turn off the power switch, disconnect the electric plug from the outlet, and have the device inspected by qualied Yamaha service personnel. If this device or the AC power adaptor should be dropped or damaged, immediately turn off the power switch, disconnect the electric plug from the outlet, and have the device inspected by qualied Yamaha service personnel.

Do not open

Do not open the device or attempt to disassemble the internal parts or modify them in any way. The device contains no user-serviceable parts. If it should appear to be malfunctioning, discontinue use immediately and have it inspected by qualied Yamaha service personnel.

CAUTION

Always follow the basic precautions listed below to avoid the possibility of physical injury to you or others, or damage to the device or other property. These precautions include, but are not limited to, the following:
Remove the electric plug from the outlet when the device is not to be used for extended periods of time, or during electrical storms. When removing the electric plug from the device or an outlet, always hold the plug itself and not the cord. Pulling by the cord can damage it. To avoid generating unwanted noise, make sure there is adequate distance (50 cm or more) between the AC power adaptor and the device. Do not cover or wrap the AC power adaptor with a cloth or blanket. If this device is to be mounted in an EIA-standard rack, leave the back of the rack open and make sure that it is at least 10 cm away from walls or surfaces. Also, if this device is to be mounted with devices that tend to generate heat, such as power ampliers, be sure to keep an adequate gap between this device and the heat-generating devices or install ventilation panels to prevent high temperatures from developing inside this device. Inadequate ventilation can result in overheating, possibly causing damage to the device(s), or even re. Avoid setting all equalizer controls and faders to their maximum. Depending on the condition of the connected devices, doing so may cause feedback and may damage the speakers. Do not expose the device to excessive dust or vibrations, or extreme cold or heat (such as in direct sunlight, near a heater, or in a car during the day) to prevent the possibility of panel disguration or damage to the internal components. Do not place the device in an unstable position where it might accidentally fall over. Do not block the vents. This device has ventilation holes at the bottom/rear to prevent the internal temperature from becoming too high. In particular, do not place the device on its side or upside down. Inadequate ventilation can result in overheating, possibly causing damage to the device(s), or even re. Do not use the device in the vicinity of a TV, radio, stereo equipment, mobile phone, or other electric devices. Doing so may result in noise, both in the device itself and in the TV or radio next to it.

Location

Before moving the device, remove all connected cables. When setting up the device, make sure that the AC outlet you are using is easily accessible. If some trouble or malfunction occurs, immediately turn off the power switch and disconnect the plug from the outlet. Even when the power switch is turned off, electricity is still owing to the product all the minimum level. When you are not using the product for a long time, make sure to unplug the power cord from the wall AC outlet.

Connections

Before connecting the device to other devices, turn off the power for all devices. Before turning the power on or off for all devices, set all volume levels to minimum.

Handling caution

When turning on the AC power in your audio system, always turn on the power amplier LAST, to avoid speaker damage. When turning the power off, the power amplier should be turned off FIRST for the same reason. Do not insert your ngers or hands in any gaps or openings on the device (vents, etc.). Avoid inserting or dropping foreign objects (paper, plastic, metal, etc.) into any gaps or openings on the device (vents, etc.) If this happens, turn off the power immediately and unplug the power cord from the AC outlet. Then have the device inspected by qualied Yamaha service personnel. Do not use the device or headphones for a long period of time at a high or uncomfortable volume level, since this can cause permanent hearing loss. If you experience any hearing loss or ringing in the ears, consult a physician. Do not rest your weight on the device or place heavy objects on it, and avoid use excessive force on the buttons, switches or connectors.
XLR-type connectors are wired as follows (IEC60268 standard): pin 1: ground, pin 2: hot (+), and pin 3: cold (-). Insert TRS phone jacks are wired as follows: sleeve: ground, tip: send, and ring: return.
Yamaha cannot be held responsible for damage caused by improper use or modications to the device, or data that is lost or destroyed.

Always turn the power off when the device is not in use. Even when the power switch is in the STANDBY position, electricity is still owing to the device at the minimum level. When you are not using the device for a long time, make sure you unplug the power cord from the wall AC outlet. The performance of components with moving contacts, such as switches, volume controls, and connectors, deteriorates over time. Consult quali ed Yamaha service personnel about replacing defective components.
The MG mixer may heat up by as much as 15 to 20C while the power is on. This is normal. Please note that the panel temperature may exceed 50C in ambient temperatures higher than 30C, and use caution to prevent burns. * This Owners Manual applies to the MG206C/MG166CX/MG166C. The main differences between the three models are the number of input channels and whether the internal effects are included. The MG206C has 20 input channels while the MG166CX/MG166C have 16 channels. And only the MG166CX has internal effects. * In this manual the term MG mixsers refers to the MG206C, MG166CX and MG166C. * Illustrations herein are for explanatory purposes only, and may not match actual appearance during operation. * Company names and product names herein are trademarks or registered trademarks of their respective companies. Copying of commercially available music or other audio data for purposes other than personal use is strictly prohibited by copyright law. Please respect all copyrights, and consult with a copyright specialist if you are in doubt about permissible use. Specications and descriptions in this owners manual are for information purposes only. Yamaha Corp. reserves the right to change or modify products or specications at any time without prior notice. Since specications, equipment or options may not be the same in every locale, please check with your Yamaha dealer.

Introduction

Thank you for your purchase of the Yamaha MG206C/MG166CX/MG166C mixing console. The MG206C/MG166CX/MG166C feature input channels suitable for a wide range of usage environments. And the MG166CX includes high-quality built-in digital effects that can provide some very serious sound. The mixer combines ease of operation with support for multiple usage environments. Please read through this manual carefully before beginning use, so that you will be able to take full advantage of this mixers superlative features and enjoy trouble-free operation for years to come.

Reverb Tone

Different reverb programs will have different reverb tone due to differences in the reverb time of the high or low frequencies. Too much reverb, particularly in the high frequencies, can result in unnatural sound and interfere with the high frequencies in other parts of the mix. Its always a good idea to choose a reverb program that gives you the depth you want without detracting from the clarity of the mix.

Compression

One form of compression known as limiting can, when properly used, produce a smooth, unied sound with no excessive peaks or distortion. A common example of the use of compression is to tame a vocal that has a wide dynamic range in order to tighten up the mix. With the right amount of compression youll be able to clearly hear whispered passages while passionate shouts are still well balanced in the mix. Compression can also be valuable on bass guitar. Too much compression can be a cause of feedback, however, so use it sparingly. Most compressors require several critical parameters to be set properly to achieve the desired sound. The MG compressor makes achieving great sound much easier: all you need to do is set a single compression control and all of the pertinent parameters are automatically adjusted for you. OUTPUT

Reverb Level

Its amazing how quickly your ears can lose perspective and fool you into believing that a totally washedout mix sounds perfectly ne. To avoid falling into this trap start with reverb level all the way down, then gradually bring the reverb into the mix until you can just hear the difference. Any more than this normally becomes a special effect.

The Modulation Effects:

Phasing, Chorus, and Flanging
All of these effects work on basically the same principle: a portion of the audio signal is time-shifted and then mixed back with the direct signal. The amount of time shift is controlled, or modulated, by an LFO (Low-frequency Oscillator). For phasing effects the shift is very small. The phase difference between the modulated and direct signals causes cancellation at some frequencies and reinforces the signal at others and this causes the shimmering sound we hear.

(Min) (Max)

Reference

Guitar

Rear panel
Recorder Powered monitor speakers Bass CD Player

Effect processor

Powered speakers Synthesizer Microphone DI
Effect processor (exciter)

Powered monitor speakers

Front & Rear Panels

Channel Control Section

MG206C MG166CX/MG166C
* A MG166C : EFFECT AUX3 Channels 1 to 8 (Monaural) Channels 9 to 12 (Monaural) Channels 13/14 and 15/16 (Stereo) Channels 17/18 and 19/20 (Stereo) Channels 1 to 6 (Monaural) Channels 7 and 8 (Monaural) Channels 9/10 and 11/12 (Stereo) Channels 13/14 and 15/16 (Stereo)

A A A B

D E F G H
Reference Front & Rear Panels

1 MIC Input jacks

These are balanced XLR-type microphone input jacks. (1: Ground; 2: Hot; 3: Cold)
Switch (High-Pass Filter)
This switch toggles the HPF on or off. To turn the HPF on, press the switch in ( ). The HPF cuts frequencies below 80 Hz (the HPF does not apply to the line inputs of stereo input channels 3, 4).
2 LINE Input Jacks (monaural channels)
These are balanced TRS phone-jack line inputs. (T: Hot; R: Cold; S: Ground). You can connect either balanced or unbalanced phone plugs to these jacks.

8 COMP Control

Adjusts the amount of compression applied to the channel. As the knob is turned to the right the compression ratio increases while the output gain is automatically adjusted accordingly. The result is smoother, more even dynamics because louder signals are attenuated while the overall level is boosted.
3 LINE Input Jacks (stereo channels)
These are unbalanced phone-jack stereo line inputs.
4 LINE Input Jacks (stereo channels)
These are unbalanced stereo RCA pin jacks.
On channels that provide multiple input jack options only one type of jack can be used at a time.
Avoid setting the compression too high, as the higher average output level that results may lead to feedback.

5 INSERT Jacks

These jacks can be used to insert an external signal-processing device between the equalizer and fader of the corresponding monaural input channel. The INSERT jacks are ideal for connecting devices such as graphic equalizers, compressors, or noise lters into the corresponding channels.

9 PEAK indicator

The peak level of the post-EQ signal is detected, and the PEAK indicator lights red when the level reaches 3 dB below clipping. For XLR-equipped stereo input channels, both the post-EQ and post-mic-amp peak levels are detected, and the indicator lights red if either of these levels reaches 3 dB below clipping.

D ON Switch

Turn this switch on to send the signal to the buses. The switch lights orange when on.
E PFL (Pre-Fader Listen) Switch
This switch lets you monitor the channels pre-fader signal. Press the switch in ( ) so that it lights to turn it on. When the switch is on the channel pre-fader signal is output to the PHONES and MONITOR OUT jacks for monitoring.

F 1-2 Switch

This switch assigns the channels signal to the GROUP 1/2 bus.
To send the signal to the GROUP 1/2 bus turn the ON switch on ( ).

G 3-4 Switch

This switch assigns the channels signal to the GROUP 3/4 bus.
To send the signal to the GROUP 3/4 bus turn the ON switch on ( ).

H ST Switch

This switch assigns the channels signal to the STEREO L/R bus.
To send the signal to the STEREO bus engage the ON switch ( ). On stereo channels, the L (odd) and R (even) input signals are mixed and sent to the AUX and EFFECT buses.
To send the signal to the STEREO bus turn the ON switch on ( ).

I Channel Fader

Adjusts the level of the channel signal. Use these faders to adjust the balance between the various channels.

B AUX PRE Switch

Selects whether the pre-fader or the post-fader signal is fed to the AUX buses. If the switch is on ( ), the mixer sends the pre-fader signal to the AUX buses, so that AUX outputs are not affected by the channel fader I. If the switch is off ( ) the mixer sends the post-fader signal to the AUX buses.
Set the fader sliders for unused channels all the way down to minimize noise.

C PAN Control

PAN/BAL Control BAL Control
The PAN control determines the stereo positioning of the channel signal on the GROUP 1/2 and GROUP 3/4 buses or on the STEREO L/R bus. The BAL control knob sets the balance between left and right channels. Signals input to the L input (odd channel) go to the GROUP 1 or 3 buses or to the STEREO L bus; signals input to the R input (even channel) go to the GROUP 2 or 4 buses or the STEREO R bus.
On channels where this knob provides both PAN and BAL control, the knob operates as a PAN control when input is received via the MIC jack or L (MONO) input only, and as a BAL control when input is received via both L and R inputs.

Digital Effects

* Only the MG166CX has digital effects.

1 FOOT SWITCH Jack

A Yamaha FC5 foot switch (sold separately) can be connected to this jack and used to toggle the digital effects ON and OFF.

2 PROGRAM Dial

Selects one of the 16 internal effects. See page 19 for details about the internal effects.

3 PARAMETER Control

Adjusts the parameter (depth, speed, etc.) for the selected effect. The last value used with each effect type is saved.
When you change to a different effect type, the mixer automatically restores the value that was previously used with that type (regardless of the current position of the PARAMETER knob). These parameter values are reset when the power is turned off.

4 AUX Control

Adjusts the level of the signal sent from the internal digital effect unit to the AUX buses.
The signal level sent to the AUX buses is not affected by the EFFECT RTN fader.

5 ON Switch

Switches the internal effect on or off. The internal effect is applied only if this switch is turned on. The switch lights orange when on. An optional Yamaha FC5 foot switch (sold separately) can be used to toggle the digital effects ON and OFF.
The ON switch lights and the internal effect unit is active when the power is initially turned on.

6 PFL Switch

Turn this switch on to send the effect signal to the PFL bus.

7 1-2 Switch

This switch assigns the effect signal to the GROUP 1/2 bus.

8 3-4 Switch

This switch assigns the effect signal to the GROUP 3/4 bus.

9 ST Switch

This switch assigns the effect signal to the STEREO L/R bus.

0 EFFECT RTN Fader

Adjusts the signal level sent from the internal digital effect unit to the STEREO bus.

Master Control Section

MG206C

MG166CX/MG166C

* 1, C MG166C : EFFECT AUX3
1 SEND Jacks (AUX, EFFECT)
These impedance balanced* TRS phone jacks output the signals from the AUX/EFFECT buses. The pre-fader send option should be selected if you are connecting to a monitor system, while the post-fader send option is the best choice when connecting to external signal processors (e.g. effects units). See AUX, EFFECT Control on page 14 for information on the types of signals sent by the AUX and EFFECT controls on each mixer model.

8 PHONES Jack

Connect a pair of headphones to this TRS phone-type output jack. The PHONES jack outputs the same signal as the MONITOR OUT jacks.

9 PHANTOM +48 V Switch

This switch toggles phantom power on and off. When the switch is on the mixer supplies +48V phantom power to all channels that have XLR mic input jacks. Turn this switch on when using one or more phantom-powered condenser microphones.

These jacks can also be used as an auxiliary stereo input. If you connect to the L (MONO) jack only, the mixer will recognize the signal as monaural and will send the identical signal to both the L and R jacks.

B RETURN

AUX1, AUX2 Control
6 STEREO OUT (L, R) Jacks
These jacks deliver the mixers stereo output. You use these jacks, for example, to connect to the power amplier driving your main speakers. You can also connect these jacks to a recording device when you wish to record mixers stereo output while using the STEREO OUT Master fader I for level control.

XLR jacks

Adjusts the level at which the L/R signal received at the RETURN jacks (L (MONO) and R) is sent to the AUX1 and AUX2 buses.

STEREO Control

Adjusts the level at which the signal received at the RETURN jacks (L (MONO) and R) is sent to the STEREO L/R bus.
XLR-type balanced output jacks.

LINE jacks

TRS phone-type balanced output jacks.

7 MONITOR OUT jacks

These are impedance-balanced* TRS phone-type output jacks.
If you supply a signal to the RETURN L (MONO) jack only, the mixer sends the same signal to both the L and R STEREO buses. (MG206C) Signals input via the RETURN1 jacks are adjusted using the RETURN1 AUX1, AUX2 and the STEREO controls, and signals input via the RETURN2 jacks are adjusted using the RETURN2 AUX1, AUX2 and the STEREO controls.
The signal output by these jacks is determined by the MONITOR switch, the 2TR IN switch, and the PFL switches on the input channels.
* impedance balanced Since the hot and cold terminals of impedance balanced output jacks have the same impedance, these output jacks are less affected by induced noise.
C Master SEND Controls (AUX, EFFECT)
Adjusts the signal level sent to the SEND (AUX, EFFECT) jacks.

MONITOR MIX Signal Flow

2TR IN control 2TR IN Playback MONITOR/PHONES controls signal MONITOR STEREO OUT/PHONES bus jacks Recording signal STEREO OUT Master fader REC OUT jacks NOTE
If you are using the MG166CX, the Master SEND control (EFFECT) does not affect the level of the signal sent from the EFFECT bus to the internal digital effect processor.

D MONITOR/PHONES

MONITOR switches
These switches select the signal sent to the MONITOR OUT jacks, PHONES jack and the level meter from STEREO L/R bus, GROUP 1/2 bus or GROUP 3/4 bus.
STEREO L/R bus: STEREO ( GROUP 1/2 bus: GROUP ( GROUP 3/4 bus: GROUP ( MONITOR Control ) ), 1-2 ( ), 3-4 ( ) )
If the input channel PFL switch is on ( ), then only the PFL output from that channel is sent to the MONITOR OUT jacks, PHONES jack, and level meter.

LFO Frequency DRIVE
* LFO stands for Low Frequency Oscillator. An LFO is normally used to modulate another signal, determining the modulation speed and waveform shape.

Jack List

Input and Output Jacks Polarities Congurations INPUT MIC INPUT, STEREO OUT Pin 1: Ground Pin 2: Hot (+) Pin 3: Cold () XLR Jack LINE INPUT (monaural channels) GROUP OUT, STEREO OUT, MONITOR OUT, AUX SEND, EFFECT SEND (Only MG166CX)* INSERT Tip: Hot (+) Ring: Cold () Sleeve: Ground Tip: Output Ring: Input Sleeve: Ground Tip: L Ring: R Sleeve: Ground OUTPUT

Sleeve

Tip TRS Phone Jack

PHONES

RETURN LINE INPUT (stereo channels)

Tip: Hot Sleeve: Ground

Tip Phone Jack
* These jacks will also accept connection to phone plugs. If you use monaural plugs, the connection will be unbalanced.

Troubleshooting

Power doesnt come on.
Is the supplied power adaptor properly plugged into an appropriate AC wall outlet? Is the supplied power adaptor properly plugged into the mixer? Are microphones, external devices, and speakers connected correctly? Are the ON switch and ST switch of the channels you are using turned ON? Are the channel GAIN controls, Channel fader, STEREO OUT Master fader and GROUP 1-2/3-4 fader set to appropriate levels? Are the MONITOR switch and 2TR IN switch set properly? Are your speaker cables connected properly, or are they shorted? If the above checks do not identify the problem, call Yamaha for service. (Refer to the page 71 for a list of service centers.) Are the channel GAIN controls, Channel fader, STEREO OUT Master fader and GROUP 1-2/3-4 fader set to appropriate levels? Are two different instruments connected to the XLR-type and phone jacks, or to the phone and RCA pin jacks on one channel? Please connect to only one of these jacks on each channel. Is the input signal from the connected device set to an appropriate level? Are you applying the effects at an appropriate level? Are microphones connected to the MIC input jacks? If you are using condenser microphones, is the PHANTOM +48 V switch turned ON? Check that the EFFECT control on each channel is correctly adjusted. Be sure that the internal effect units ON switch is turned ON. Be sure that the EFFECT PARAMETER control and EFFECT RTN fader are correctly adjusted. Be sure that the switches are ON. Adjust the equalizers (HIGH, MID and LOW) on each channel. Connect a powered speaker to the AUX 1, 2 or 3 jack (MG206C), or to the AUX1 or 2 jack (MG166CX/MG166C) and turn the PRE switch on each channel on. Then adjust the output signal by using the AUX controls on each channel and the Master SEND control. Are the PFL switches for the channels that you are not using turned on?

No sound.

Sound is faint, distorted, or noisy.
No effect is applied. (If you are using MG166CX)
I want spoken words to be heard more clearly. I want to output a monitor signal through speakers.
The level meter doesnt show the output signal level.

Specications

MG206C Electrical Specications

MIN TYP MAX UNIT

Frequency Response
Total Harmonic Distortion (THD + N) Hum & Noise Hum & Noise are measured with a 6 dB/octave lter @ 12.7 kHz; equivalent to a 20 kHz lter with innite dB/octave attenuation. Crosstalk (1 kHz) Maximum voltage gain (1 kHz) All faders and controls are maximum when measured. PAN/BAL: panned hard left or hard right
STEREO OUT GROUP OUT AUX SEND MONITOR OUT, REC OUT STEREO OUT CH INPUT 112 MIC STEREO OUT GROUP OUT AUX SEND
GAIN: min (CHs 119/20) 20 Hz20 kHz Nominal output level @1 kHz Input: CHs 1 to 19/20, RETURN, 2TR IN +14 dBu @ 20 Hz20 kHz, Input GAIN Control at minimum EIN (Equivalent Input Noise): Rs = 150 , GAIN: maximum STEREO OUT, GROUP 1-2 fader and GROUP 3-4 fader at nominal level and all channels ST and 1-2, 3-4 switches off.
0.1 -128 -88 -81 -64 -98 -70 -62.27.8 48

Phantom Voltage

Master/AUX control at nominal level and all CH AUX controls at minimum. STEREO OUT STEREO OUT, GROUP 1-2, GROUP 3-4 faders and one CH GROUP OUT fader at nominal level. STEREO OUT Residual Output Noise Adjacent Input CHs 112 Input to Output STEREO L/R, CHs 112, PAN: panned hard left or right Rs = 150 MIC to CH INSERT OUT INPUT GAIN: maximum MIC to STEREO OUT MIC to GROUP OUT MIC to GROUP to ST MIC to REC OUT MIC to MONITOR OUT, ST TO MONITOR MIC to PHONES OUT MIC to AUX SEND PRE MIC to AUX SEND POST CH 17/18, 19/20 LINE to STEREO OUT CH 17/18, 19/20 LINE to GROUP OUT CH 17/18, 19/20 LINE to AUX SEND PRE CH 17/18, 19/20 LINE to AUX SEND POST Rs = 150 RETURN to STEREO OUT RETURN to AUX SEND Rs = 600 2TR IN to STEREO OUT MIC no load

General Specications

Input HPF Input equalization 15 dB maximum Turn over/roll-off frequency of shelving: 3 dB blow maximum variable level. PEAK Indicator LED Level Meter Power Supply Adaptor Power Consumption Dimensions (W x H x D) Net Weight 80 Hz, 12 dB/oct CHs 112 HIGH: 10 kHz (shelving) MID: 250 Hz5 kHz (peaking) LOW: 100 Hz (shelving) CH 13/1419/20 HIGH: 10 kHz (shelving) MID: 2.5 kHz (peaking) LOW: 100 Hz (shelving) Red LED turns on when post EQ signal (either post MIC HA or post EQ signal for CHs 13/1419/20) reaches -3 dB below clipping (+17 dBu). Pre MONITOR Level 2x12 points LED meter (PEAK, +10, +6, +3, 0, -3, -6, -10, -15, -20, -25, -30 dB) STEREO/GROUP/PFL bus PEAK lights if the signal level reaches 3 dB below the clipping level. PA-30 AC 35 VCT, 1.4 A, Cable Length = 3.6 m 40 W 478 mm x 102 mm x 496 mm 6.0 kg
All faders are nominal if not specied. Output impedance of signal generator: 150 ohms

Reference Specifications

Input Specications
Input Connectors Gain -60 dB 3k -16 dB -34 dB 10k +10 dB -60 dB 3k -16 dB -34 dB 10k +10 dB -34 dB 10k +10 dB 10k 10k 10k
Input Impedance Appropriate Impedance
Sensitivity * -80 dBu (0.078 mV) -36 dBu (12.3 mV) -54 dBu (1.55 mV) -10 dBu (245 mV) -80 dBu (0.078 mV) -36 dBu (12.3 mV) -54 dBu (1.55 mV) -10 dBu (245 mV) -54 dB (1.55 mV) -10 dBu (245 mV) -20 dBu (77.5 mV) -12 dBu (195 mV) -26 dBV (50.1 mV)
Nominal Level -60 dBu (0.775 mV) -16 dBu (123 mV) -34 dBu (15.5 mV) +10 dBu (2.45 V) -60 dBu (0.775 mV) -16 dBu (123 mV) -34 dBu (15.5 mV) +10 dBu (2.45 V) -34 dB (15.5 mV) +10 dBu (2.45 V) 0 dBu (0.775 V) +4 dBu (1.23 V) -10dBV (0.316V)
Max. before Clipping -40 dBu (7.75 mV) +4 dBu (1.23 V) -14 dBu (155 mV) +30 dBu (24.5 V) -40 dBu (7.75 mV) -6 dBu (389 mV) -14 dBu (155 mV) +30 dBu (24.5 V) -14 dB (155 mV) +30 dBu (24.5 V) +20 dBu (7.75 V) +24 dBu (12.3 V) +10dBV (3.16 V)

Connector Specications

CH INPUT MIC (CHs 112)

50600 Mics

XLR-3-31 type (balanced [1 = GND, 2 = HOT, 3 = COLD])

CH INPUT LINE (CHs 112)

600 Lines
TRS phone jack (balanced [Tip = HOT, Ring = COLD, Sleeve = GND])
ST CH MIC INPUT (CHs 13/1419/20)
ST CH LINE INPUT (CHs 13/14, 15/16)

Phone jack (unbalanced)

ST CH INPUT (CHs 17/18, 19/20) CH INSERT IN (CHs 112) RETURN (L, R) 2TR IN (L, R)
600 Lines 600 Lines 600 Lines 600 Lines
Phone jack (unbalanced) RCA pin jack TRS phone Jack (unbalanced [Tip = Out, Ring = In, Sleeve = GND]) Phone jack (unbalanced) RCA pin jack
Where 0 dBu = 0.775 Vrms and 0 dBV= 1 Vrms * Sensitivity : The lowest level that will produce an output of +4 dB (1.23 V), or the nominal output level when the unit is set to the maximum level. (All faders and level controls are at their maximum position.)

Output Specications

Output Connectors Output Impedance 75 Appropriate Impedance 600 Lines Nominal Level Max. before clipping +24 dBu (12.3 V) Connector Specications XLR-3-32 type (balanced [1 = GND, 2 = HOT, 3 = COLD]) TRS phone jack (balanced [Tip = HOT, Ring = COLD, Sleeve = GND]) TRS phone jack (impedance balanced [Tip = HOT, Ring = COLD, Sleeve = GND]) TRS phone jack (impedance balanced [Tip = HOT, Ring = COLD, Sleeve = GND]) TRS phone jack (unbalanced [Tip = Out, Ring = In, Sleeve = GND]) RCA pin jack TRS phone jack (impedance balanced [Tip = HOT, Ring = COLD, Sleeve = GND]) TRS phone jack

[-6dBu]
ST GROUP Fader ON SUM BA [-10dBu] YE AUX1 [-6dBu] SUM BA [0dBu] [+4dBu] [-10dBu] BA G34 [0dBu]
RE CH Fader PAN G12 [0dBu]

MIC 2 GROUP OUT 3

PHANTOM +48V PEAK RE [0dBu] SUM BA [0dBu] [-10dBu]

CH1 to 8

[-60 to -16dBu]

CH INPUT LINE

(CH1 to 12)

[16 to 60dB]

STEREO OUT

[+4dBu]

[-34 to +10dBu]
Block Diagram and Level Diagram (MG206C)

L REC OUT

[-10dBV]

[-34 to +10dBu] HPF

(CH17/18, 19/20)

LINE L

ST CH INPUT 17/18-19/20 Same as ST CH INPUT 13/14-15/16

R [-7.8dBu]

GAIN Trim +15V
SUM [-6dBu] STEREO SUM AUX 1 [-14dBu] [0dBu] SUM

HA [0dBu]

L MONITOR OUT

SUM [+4dBu]

INV AUX 2 [-14dBu]
DR LED Meter [-16dBu] INV MONI/PHONES INV

L/MONO

RETURN

(RETURN1/2) [+4dBu] R

[3mW,40ohms]

ST/MONITOR

2TR IN

[-10dBV] [-7.8dBu]

AUX SEND 1 [-6dBu]

AUX SEND 1

AUX SEND 2 to 4 Same as AUX SEND 1

MONITOR MIX

+30dBu
Clip Level RETURN [+4dBu] 2TR IN [-10dBV] [-7.8dBu] ST CH AUX *1 [Nominal:-6dB] CH Level ST CH Level [Nominal:-10dB] RETURN 2TR IN [Nominal:-6dB] AUX SEND *1 [Nominal:-6dB] REC OUT [-7.8dBu] GROUP Fader [Nominal:-10dB] ST Master [Nominal:-10dB] MONI/PHONES [Nominal:-16dB] CH AUX *1 [Nominal:-6dB] Clip Level AUX SEND *1 [+4dBu] Clip Level GROUP OUT [+4dBu] Clip Level ST OUT [+4dBu] MONITOR OUT [+4dBu] PHONES [3mW @ 40ohms] Clip Level
+30dBu +20dBu +10dBu 0dBu -10dBu -20dBu -30dBu

+20dBu

Clip Level

+10dBu

CH IN LINE Gain:Min [+10dBu]
ST CH IN LINE Gain:Min [+10dBu]

-10dBu

CH IN MIC Gain:Min [-16dBu]
ST CH IN MIC Gain:Min [-16dBu]

-20dBu

ST CH IN [-10dBu]

-30dBu

CH IN LINE Gain:Max [-34dBu]
ST CH IN LINE Gain:Max [-34dBu]

-40dBu

-50dBu

-60dBu

CH IN MIC Gain:Max [-60dBu]
ST CH IN MIC Gain:Max [-60dBu]

AUX1 AUX2 AUX*

STEREO L STEREO R GROUP 1 GROUP 2 GROUP 3 GROUP 4 PFL L PFL R PFL CTRL
RE GROUP Fader ON SUM BA [-10dBu] [0dBu] AUX1 AUX2 PRE AUX* [0dBu] [0dBu] CH Fader SUM TO ST [-6dBu] SUM BA [-6dBu] GROUP Fader [-6dBu] SUM BA [+4dBu] [-10dBu] BA G34 [0dBu] [0dBu] CH Fader PAN G12 [0dBu]

MIC 2 GROUP OUT 3 4

PHANTOM +48V PEAK RE ST [0dBu] SUM BA [0dBu] [-10dBu]

CH1 to 6

[-60 to -16dBu] YE

HPF Hi G PEAK RE

TH+GAIN CH7 to 8 [0dBu]

INSERT I/O

[0dBu] PFL ST SUM G12 [0dBu] YE G34 [0dBu] [-6dBu] BA AUX 1 [-6dBu] [0dBu]

(CH1 to 8)

This product, when installed as indicated in the instructions contained in this manual, meets FCC requirements. Modications not expressly approved by Yamaha may void your authority, granted by the FCC, to use the product. 2. IMPORTANT: When connecting this product to accessories and/or another product use only high quality shielded cables. Cable/s supplied with this product MUST be used. Follow all installation instructions. Failure to follow instructions could void your FCC authorization to use this product in the USA. 3. NOTE: This product has been tested and found to comply with the requirements listed in FCC Regulations, Part 15 for Class B digital devices. Compliance with these requirements provides a reasonable level of assurance that your use of this product in a residential environment will not result in harmful interference with other electronic devices. This equipment generates/uses radio frequencies and, if not installed and used according to the instructions found in the users manual, may cause interference harmful to the operation of other electronic devices. Compliance with FCC regulations does not guarantee that interference will not occur in all installations. If this product is found to be the source of interference, which can be determined by turning the unit OFF and ON, please try to eliminate the problem by using one of the following measures: Relocate either this product or the device that is being affected by the interference. Utilize power outlets that are on different branch (circuit breaker or fuse) circuits or install AC line lter/s. In the case of radio or TV interference, relocate/reorient the antenna. If the antenna lead-in is 300 ohm ribbon lead, change the lead-in to co-axial type cable. If these corrective measures do not produce satisfactory results, please contact the local retailer authorized to distribute this type of product. If you can not locate the appropriate retailer, please contact Yamaha Corporation of America, Electronic Service Division, 6600 Orangethorpe Ave, Buena Park, CA90620 The above statements apply ONLY to those products distributed by Yamaha Corporation of America or its subsidiaries.
* This applies only to the MG166CX distributed by YAMAHA CORPORATION OF AMERICA, not the MG206C/MG166C.

(class B)

MG206C/MG166CX/MG166C Owners Manual

PRECAUCIONES

LEER DETENIDAMENTE ANTES DE CONTINUAR
* Guarde este manual en un lugar seguro para su referencia futura.

ADVERTENCIA

Siempre obedezca las precauciones bsicas indicadas abajo para evitar as la posibilidad de lesiones graves o incluso peligro de muerte debido a descargas elctricas, incendios u otras contingencias. Estas precauciones incluyen, pero no se limitan, a los siguientes puntos:

No hay sonido.

El sonido es dbil, distorsionado o ruidoso.
No se aplica ningn efecto. (Si utiliza la MG166CX)
Deseo que las palabras habladas se oigan con mayor claridad. Deseo emitir una seal de monitor a travs de los altavoces. El indicador de nivel no muestra el nivel de seal de salida.

Reference

Specications
MG206C Electrical Specications

MIN TYP MAX UNIT

Frequency Response
Total Harmonic Distortion (THD + N) Hum & Noise Hum & Noise are measured with a 6 dB/octave lter @ 12.7 kHz; equivalent to a 20 kHz lter with innite dB/octave attenuation. Crosstalk (1 kHz) Maximum voltage gain (1 kHz) All faders and controls are maximum when measured. PAN/BAL: panned hard left or hard right
STEREO OUT GROUP OUT AUX SEND MONITOR OUT, REC OUT STEREO OUT CH INPUT 112 MIC STEREO OUT GROUP OUT AUX SEND
GAIN: min (CHs 119/20) 20 Hz20 kHz Nominal output level @1 kHz Input: CHs 1 to 19/20, RETURN, 2TR IN +14 dBu @ 20 Hz20 kHz, Input GAIN Control at minimum EIN (Equivalent Input Noise): Rs = 150 , GAIN: maximum STEREO OUT, GROUP 1-2 fader and GROUP 3-4 fader at nominal level and all channels ST and 1-2, 3-4 switches off.
0.1 -128 -88 -81 -64 -98 -70 -62.27.8 48

Phantom Voltage

Master/AUX control at nominal level and all CH AUX controls at minimum. STEREO OUT STEREO OUT, GROUP 1-2, GROUP 3-4 faders and one CH GROUP OUT fader at nominal level. STEREO OUT Residual Output Noise Adjacent Input CHs 112 Input to Output STEREO L/R, CHs 112, PAN: panned hard left or right Rs = 150 MIC to CH INSERT OUT INPUT GAIN: maximum MIC to STEREO OUT MIC to GROUP OUT MIC to GROUP to ST MIC to REC OUT MIC to MONITOR OUT, ST TO MONITOR MIC to PHONES OUT MIC to AUX SEND PRE MIC to AUX SEND POST CH 17/18, 19/20 LINE to STEREO OUT CH 17/18, 19/20 LINE to GROUP OUT CH 17/18, 19/20 LINE to AUX SEND PRE CH 17/18, 19/20 LINE to AUX SEND POST Rs = 150 RETURN to STEREO OUT RETURN to AUX SEND Rs = 600 2TR IN to STEREO OUT MIC no load

General Specications

Input HPF Input equalization 15 dB maximum Turn over/roll-off frequency of shelving: 3 dB blow maximum variable level. PEAK Indicator LED Level Meter Power Supply Adaptor Power Consumption Dimensions (W x H x D) Net Weight 80 Hz, 12 dB/oct CHs 112 HIGH: 10 kHz (shelving) MID: 250 Hz5 kHz (peaking) LOW: 100 Hz (shelving) CH 13/1419/20 HIGH: 10 kHz (shelving) MID: 2.5 kHz (peaking) LOW: 100 Hz (shelving) Red LED turns on when post EQ signal (either post MIC HA or post EQ signal for CHs 13/1419/20) reaches -3 dB below clipping (+17 dBu). Pre MONITOR Level 2x12 points LED meter (PEAK, +10, +6, +3, 0, -3, -6, -10, -15, -20, -25, -30 dB) STEREO/GROUP/PFL bus PEAK lights if the signal level reaches 3 dB below the clipping level. PA-30 AC 35 VCT, 1.4 A, Cable Length = 3.6 m 40 W 478 mm x 102 mm x 496 mm 6.0 kg

All faders are nominal if not specied. Output impedance of signal generator: 150 ohms

Reference Specifications

Input Specications
Input Connectors Gain -60 dB 3k -16 dB -34 dB 10k +10 dB -60 dB 3k -16 dB -34 dB 10k +10 dB -34 dB 10k +10 dB 10k 10k 10k
Input Impedance Appropriate Impedance
Sensitivity * -80 dBu (0.078 mV) -36 dBu (12.3 mV) -54 dBu (1.55 mV) -10 dBu (245 mV) -80 dBu (0.078 mV) -36 dBu (12.3 mV) -54 dBu (1.55 mV) -10 dBu (245 mV) -54 dB (1.55 mV) -10 dBu (245 mV) -20 dBu (77.5 mV) -12 dBu (195 mV) -26 dBV (50.1 mV)
Nominal Level -60 dBu (0.775 mV) -16 dBu (123 mV) -34 dBu (15.5 mV) +10 dBu (2.45 V) -60 dBu (0.775 mV) -16 dBu (123 mV) -34 dBu (15.5 mV) +10 dBu (2.45 V) -34 dB (15.5 mV) +10 dBu (2.45 V) 0 dBu (0.775 V) +4 dBu (1.23 V) -10dBV (0.316V)
Max. before Clipping -40 dBu (7.75 mV) +4 dBu (1.23 V) -14 dBu (155 mV) +30 dBu (24.5 V) -40 dBu (7.75 mV) -6 dBu (389 mV) -14 dBu (155 mV) +30 dBu (24.5 V) -14 dB (155 mV) +30 dBu (24.5 V) +20 dBu (7.75 V) +24 dBu (12.3 V) +10dBV (3.16 V)

Connector Specications

CH INPUT MIC (CHs 112)

50600 Mics

XLR-3-31 type (balanced [1 = GND, 2 = HOT, 3 = COLD])

CH INPUT LINE (CHs 112)

600 Lines
TRS phone jack (balanced [Tip = HOT, Ring = COLD, Sleeve = GND])
ST CH MIC INPUT (CHs 13/1419/20)
ST CH LINE INPUT (CHs 13/14, 15/16)

Phone jack (unbalanced)

ST CH INPUT (CHs 17/18, 19/20) CH INSERT IN (CHs 112) RETURN (L, R) 2TR IN (L, R)
600 Lines 600 Lines 600 Lines 600 Lines
Phone jack (unbalanced) RCA pin jack TRS phone Jack (unbalanced [Tip = Out, Ring = In, Sleeve = GND]) Phone jack (unbalanced) RCA pin jack
Where 0 dBu = 0.775 Vrms and 0 dBV= 1 Vrms * Sensitivity : The lowest level that will produce an output of +4 dB (1.23 V), or the nominal output level when the unit is set to the maximum level. (All faders and level controls are at their maximum position.)

Output Specications

Output Connectors Output Impedance 75 Appropriate Impedance 600 Lines Nominal Level Max. before clipping +24 dBu (12.3 V) Connector Specications XLR-3-32 type (balanced [1 = GND, 2 = HOT, 3 = COLD]) TRS phone jack (balanced [Tip = HOT, Ring = COLD, Sleeve = GND]) TRS phone jack (impedance balanced [Tip = HOT, Ring = COLD, Sleeve = GND]) TRS phone jack (impedance balanced [Tip = HOT, Ring = COLD, Sleeve = GND]) TRS phone jack (unbalanced [Tip = Out, Ring = In, Sleeve = GND]) RCA pin jack TRS phone jack (impedance balanced [Tip = HOT, Ring = COLD, Sleeve = GND]) TRS phone jack

STEREO OUT (L, R)

+4dBu (1.23 V)
GROUP OUT (14) AUX SEND (14) CH INSERT OUT (CHs 112) REC OUT (L, R) MONITOR OUT (L, R) PHONES OUT

150 100

10k Lines 10k Lines 10k Lines 10k Lines 10k Lines 40 Phones
+4dBu (1.23 V) +4dBu (1.23 V) 0 dBu (0.775 V) -10 dBV (0.316 V) +4 dBu (1.23 V) 3 mW

+20 dBu (7.75 V) +20 dBu (7.75 V) +20 dBu (7.75 V) +10 dBV (3.16 V) +20 dBu (7.75 V) 75 mW
Where 0 dBu = 0.775 Vrms and 0 dBV = 1 Vrms
MG166CX/MG166C Electrical Specications
STEREO OUT GROUP OUT EFFECT/AUX* SEND MONITOR OUT, REC OUT STEREO OUT CH INPUT 18 MIC STEREO OUT GROUP OUT EFFECT/AUX* SEND
GAIN: min (CHs 111/12) 20 Hz20 kHz Nominal output level @1 kHz Input: CHs 1 to 15/16, RETURN, 2TR IN +14 dBu @ 20 Hz20 kHz, Input GAIN Control at minimum EIN (Equivalent Input Noise): Rs = 150 , GAIN: maximum STEREO OUT, GROUP 1-2 fader and GROUP 3-4 fader at nominal level and all channels ST and 1-2, 3-4 switches off.
0.1 -128 -88 -81 -64 -98 -70 -62.9 27.8 48
Master EFFECT/AUX* control at nominal level and all CH EFFECT/AUX* controls at minimum. STEREO OUT STEREO OUT, GROUP 1-2, GROUP 3-4 faders and one CH GROUP OUT fader at nominal level. STEREO OUT Residual Output Noise Adjacent Input CHs 18 Input to Output STEREO L/R, CHs 18, PAN: panned hard left or right Rs = 150 MIC to CH INSERT OUT INPUT GAIN: maximum MIC to STEREO OUT MIC to GROUP OUT MIC to GROUP to ST MIC to REC OUT MIC to MONITOR OUT, ST TO MONITOR MIC to PHONES OUT MIC to AUX SEND PRE MIC to AUX SEND POST, EFFECT* SEND CH 9/10, 11/12 LINE to STEREO OUT CH 9/10, 11/12 LINE to GROUP OUT CH 9/10, 11/12 LINE to AUX SEND PRE CH 9/10, 11/12 LINE to AUX SEND POST, EFFECT* SEND CH 13/14, 15/16 to STEREO OUT CH 13/14, 15/16 to GROUP OUT Rs = 150 RETURN to STEREO OUT RETURN to EFFECT/AUX* SEND Rs = 600 2TR IN to STEREO OUT MIC no load
Input HPF Input equalization 15 dB maximum Turn over/roll-off frequency of shelving: 3 dB blow maximum variable level. PEAK Indicator Internal Digital Effect (Only MG166CX) LED Level Meter Power Supply Adaptor Power Consumption Dimensions (W x H x D) Net Weight CHs 111/Hz, 12 dB/oct CHs 18 HIGH: 10 kHz (shelving) MID: 250 Hz5 kHz (peaking) LOW: 100 Hz (shelving) CH 9/1015/16 HIGH: 10 kHz (shelving) MID: 2.5 kHz (peaking) LOW: 100 Hz (shelving) Red LED turns on when post EQ signal (either post MIC HA or post EQ signal for CHs 9/1015/16) reaches -3 dB below clipping (+17 dBu). 16 PROGRAM, PARAMETER control Foot Switch (Digital Effect On/Off) Pre MONITOR Level 2x12 points LED meter (PEAK, +10, +6, +3, 0, -3, -6, -10, -15, -20, -25, -30 dB) STEREO/GROUP/PFL bus PEAK lights if the signal level reaches 3 dB below the clipping level. PA-30 AC 35 VCT, 1.4 A, Cable Length = 3.6 m 35 W (MG166CX), 30 W (MG166C) 478 mm x 102 mm x 496 mm 5.5 kg (MG166CX), 5.3 kg (MG166C)
All faders are nominal if not specied. Output impedance of signal generator: 150 ohms * MG166CX: AUX1, 2, EFFECT MG166C: AUX1, 2, 3

Input Connectors Gain -60 dB 3k -16 dB -34 dB 10k +10 dB -60 dB 3k -16 dB -34 dB 10k +10 dB 10k 10k 10k 10k
Sensitivity * -80 dBu (0.078 mV) -36 dBu (12.3 mV) -54 dBu (1.55 mV) -10 dBu (245 mV) -80 dBu (0.078 mV) -36 dBu (12.3 mV) -54 dBu (1.55 mV) -10 dBu (245 mV) -30 dBu (24.5 mV) -20 dBu (77.5 mV) -12 dBu (195 mV) -26 dBV (50.1 mV)
Nominal Level -60 dBu (0.775 mV) -16 dBu (123 mV) -34 dBu (15.5 mV) +10 dBu (2.45 V) -60 dBu (0.775 mV) -16 dBu (123 mV) -34 dBu (15.5 mV) +10 dBu (2.45 V) -10 dBu (245 mV) 0 dBu (0.775 V) +4 dBu (1.23 V) -10dBV (0.316V)
Max. before Clipping -40 dBu (7.75 mV) +4 dBu (1.23 V) -14 dBu (155 mV) +30 dBu (24.5 V) -40 dBu (7.75 mV) -6 dBu (389 mV) -14 dBu (155 mV) +30 dBu (24.5 V) +10 dBu (2.45 V) +20 dBu (7.75 V) +24 dBu (12.3 V) +10dBV (3.16 V)

CH INPUT MIC (CHs 18)

CH INPUT LINE (CHs 18)
ST CH MIC INPUT (CHs 9/10, 11/12)
ST CH LINE INPUT (CHs 9/10, 11/12) ST CH INPUT (CHs 13/14, 15/16) CH INSERT IN (CHs 18) RETURN (L, R) 2TR IN (L, R)
600 Lines 600 Lines 600 Lines 600 Lines 600 Lines
GROUP OUT (14) EFFECT/AUX* SEND CH INSERT OUT (CHs 18) REC OUT (L, R) MONITOR OUT (L, R) PHONES OUT
Where 0 dBu = 0.775 Vrms and 0 dBV= 1 Vrms * MG166CX: AUX1, 2, EFFECT MG166C: AUX1, 2, 3
Dimensional Diagrams (MG206C/MG166CX/MG166C)

102 478

Unit: mm

Rack Mounting

To mount the MG mixer, it requires 12U of rack space.
If the MG mixer is to be mounted with devices that tend to generate heat, such as power ampliers, be sure to install ventilation panels to prevent high temperatures from developing inside the mixer.

CAUTION

* 12U (Approx. 534mm) * Specications and descriptions in this owners manual are for information purposes only. Yamaha Corp. reserves the right to change or modify products or specications at any time without prior notice. Since specications, equipment or options may not be the same in every locale, please check with your Yamaha dealer.

Specifications

AUX1 AUX2 AUX3 AUX4 STEREO L STEREO R GROUP 1 GROUP 2 GROUP 3 GROUP 4 PFL L PFL R PFL CTRL

[0dBu]

[-34 to +10dBu] AUX2 PRE SUM AUX3 [0dBu]
TH+GAIN CH9 to 12 GROUP Fader [-6dBu] BA [-6dBu] TO STEREO SUM [-6dBu]

INSERT I/O 4

PEAK RE PRE AUX4 PFL SUM ST G12 [0dBu] YE G34 [0dBu] [-6dBu] BA AUX 1 [0dBu]

[-10dBu]

[-34 to +10dBu] CH Fader BAL/PAN BA [0dBu]

MIC +15V

[-60 to -16dBu] [-10dBu]

ST CH INPUT

(CH13/14, 15/16)

LINE L/MONO

3-Stage EQ
[-34 to +10dBu] ST Fader SUM BA [0dBu] [-6dBu] AUX 2 PRE AUX 3 [-6dBu] PRE [-6dBu] ST/GROUP 1-2/3-4 [0dBu] LED Meter DR PFL AUX 4 SUM BA

GAIN Trim

[6 to 50dB]

LINE R

[-6dBu]
ST GROUP Fader ON SUM BA [-10dBu] YE AUX1 [-6dBu] SUM BA [0dBu] [+4dBu] [-10dBu] BA G34 [0dBu]
RE CH Fader PAN G12 [0dBu]

MIC 2 GROUP OUT 3

PHANTOM +48V PEAK RE [0dBu] SUM BA [0dBu] [-10dBu]

CH1 to 8

[-60 to -16dBu]

CH INPUT LINE

(CH1 to 12)

[16 to 60dB]

STEREO OUT

[+4dBu]

[-34 to +10dBu]
Block Diagram and Level Diagram (MG206C)

L REC OUT

[-10dBV]

[-34 to +10dBu] HPF

(CH17/18, 19/20)

LINE L

ST CH INPUT 17/18-19/20 Same as ST CH INPUT 13/14-15/16

R [-7.8dBu]

GAIN Trim +15V
SUM [-6dBu] STEREO SUM AUX 1 [-14dBu] [0dBu] SUM

HA [0dBu]

L MONITOR OUT

SUM [+4dBu]

INV AUX 2 [-14dBu]
DR LED Meter [-16dBu] INV MONI/PHONES INV

L/MONO

RETURN

(RETURN1/2) [+4dBu] R

[3mW,40ohms]

ST/MONITOR

2TR IN

[-10dBV] [-7.8dBu]

AUX SEND 1 [-6dBu]

AUX SEND 1

AUX SEND 2 to 4 Same as AUX SEND 1

MONITOR MIX

+30dBu
Clip Level RETURN [+4dBu] 2TR IN [-10dBV] [-7.8dBu] ST CH AUX *1 [Nominal:-6dB] CH Level ST CH Level [Nominal:-10dB] RETURN 2TR IN [Nominal:-6dB] AUX SEND *1 [Nominal:-6dB] REC OUT [-7.8dBu] GROUP Fader [Nominal:-10dB] ST Master [Nominal:-10dB] MONI/PHONES [Nominal:-16dB] CH AUX *1 [Nominal:-6dB] Clip Level AUX SEND *1 [+4dBu] Clip Level GROUP OUT [+4dBu] Clip Level ST OUT [+4dBu] MONITOR OUT [+4dBu] PHONES [3mW @ 40ohms] Clip Level
+30dBu +20dBu +10dBu 0dBu -10dBu -20dBu -30dBu

+20dBu

Clip Level

+10dBu

CH IN LINE Gain:Min [+10dBu]
ST CH IN LINE Gain:Min [+10dBu]

-10dBu

CH IN MIC Gain:Min [-16dBu]
ST CH IN MIC Gain:Min [-16dBu]

-20dBu

ST CH IN [-10dBu]

-30dBu

CH IN LINE Gain:Max [-34dBu]
ST CH IN LINE Gain:Max [-34dBu]

-40dBu

-50dBu

-60dBu

CH IN MIC Gain:Max [-60dBu]
ST CH IN MIC Gain:Max [-60dBu]

AUX1 AUX2 AUX*

STEREO L STEREO R GROUP 1 GROUP 2 GROUP 3 GROUP 4 PFL L PFL R PFL CTRL
RE GROUP Fader ON SUM BA [-10dBu] [0dBu] AUX1 AUX2 PRE AUX* [0dBu] [0dBu] CH Fader SUM TO ST [-6dBu] SUM BA [-6dBu] GROUP Fader [-6dBu] SUM BA [+4dBu] [-10dBu] BA G34 [0dBu] [0dBu] CH Fader PAN G12 [0dBu]

MIC 2 GROUP OUT 3 4

PHANTOM +48V PEAK RE ST [0dBu] SUM BA [0dBu] [-10dBu]

CH1 to 6

[-60 to -16dBu] YE

HPF Hi G PEAK RE

TH+GAIN CH7 to 8 [0dBu]

INSERT I/O

[0dBu] PFL ST SUM G12 [0dBu] YE G34 [0dBu] [-6dBu] BA AUX 1 [-6dBu] [0dBu]

(CH1 to 8)

BA [0dBu] BAL/PAN

[-10dBu] [0dBu]

(CH9/10, 11/12)
[-34 to +10dBu] STEREO Fader SUM BA [0dBu]
HA [0dBu] AUX 2 PRE [-6dBu] AUX* PFL SUM BA

L +15V

ON STEREO/GROUP 1-2/3-4 [0dBu] LED Meter Hi YE [0dBu]

REC OUT R

L Same as CH9/10

DR SUM [0dBu] [0dBu] SUM

(CH13/14, 15/16) [-10dBu]

SUM ST [-6dBu] SUM

DR LED Meter [-16dBu] AUX 2 [-14dBu] [-6dBu] INV MONI/PHONES INV

AUX 1 [-14dBu]

TO ST/TO MONITOR

2TR IN SUM [0dBu]

AUX SEND 2 [-6dBu] [+4dBu]

[0dBu] [0dBu]

Block Diagram and Level Diagram (MG166CX/MG166C)

AUX SEND 2

[0dBu] AUX SEND* [-6dBu] [+4dBu] BA

AUX SEND *

MONITOR MIX [+4dBu]

only MG166CX

EFFECT RETURN L out [-10dBu] R out BA AUX 1 AUX 2 [-14dBu] [-14dBu] BA

FOOT SW EFFECT ON/OFF

SINGAPORE

Yamaha Music Asia Pte., Ltd. #03-11 A-Z Building 140 Paya Lebor Road, Singapore 409015 Tel: 747-4374

ARGENTINA

Yamaha Music Latin America, S.A. Sucursal de Argentina Viamonte 1145 Piso2-B 1053, Buenos Aires, Argentina Tel: 1-4371-7021

SWEDEN

Yamaha Scandinavia AB J. A. Wettergrens Gata 1 Box 30053 S-Gteborg, Sweden Tel: 34 00

TAIWAN

Yamaha KHS Music Co., Ltd. 3F, #6, Sec.2, Nan Jing E. Rd. Taipei. Taiwan 104, R.O.C. Tel: 02-2511-8688
PANAMA AND OTHER LATIN AMERICAN COUNTRIES/ CARIBBEAN COUNTRIES
Yamaha Music Latin America, S.A. Torre Banco General, Piso 7, Urbanizacin Marbella, Calle 47 y Aquilino de la Guardia, Ciudad de Panam, Panam Tel: +507-269-5311

DENMARK

YS Copenhagen Liaison Ofce Generatorvej 6A DK-2730 Herlev, Denmark Tel: 49 00

THAILAND

Siam Music Yamaha Co., Ltd. 891/1 Siam Motors Building, 15-16 oor Rama 1 road, Wangmai, Pathumwan Bangkok 10330, Thailand Tel: 02-215-2626

NORWAY

Norsk lial av Yamaha Scandinavia AB Grini Nringspark 1 N-1345 sters, Norway Tel: 77 70

OTHER ASIAN COUNTRIES

Yamaha Corporation, Asia-Pacic Music Marketing Group Nakazawa-cho 10-1, Naka-ku, Hamamatsu, Japan 430-8650 Tel: +81-53-460-2317

EUROPE

THE UNITED KINGDOM
Yamaha-Kemble Music (U.K.) Ltd. Sherbourne Drive, Tilbrook, Milton Keynes, MK7 8BL, England Tel: 01908-366700

OTHER EUROPEAN COUNTRIES

Yamaha Music Central Europe GmbH Siemensstrae 22-34, 25462 Rellingen, Germany Tel: +49-4101-3030

GERMANY

Yamaha Music Central Europe GmbH Siemensstrae 22-34, 25462 Rellingen, Germany Tel: 04101-3030

OCEANIA AFRICA

Yamaha Corporation, Asia-Pacic Music Marketing Group Nakazawa-cho 10-1, Naka-ku, Hamamatsu, Japan 430-8650 Tel: +81-53-460-2313

AUSTRALIA

Yamaha Music Australia Pty. Ltd. Level 1, 99 Queensbridge Street, Southbank, Victoria 3006, Australia Tel: 3-9693-5111
SWITZERLAND/LIECHTENSTEIN
Yamaha Music Central Europe GmbH, Branch Switzerland Seefeldstrasse 94, 8008 Zrich, Switzerland Tel: 01-383 3990
COUNTRIES AND TRUST TERRITORIES IN PACIFIC OCEAN

MIDDLE EAST

TURKEY/CYPRUS

AUSTRIA

Yamaha Music Central Europe GmbH, Branch Austria Schleiergasse 20, A-1100 Wien, Austria Tel: 01-60203900

OTHER COUNTRIES